Essential tools for unit conversion and measurement
Quick and accurate converters for all your measurement needs
Our conversion calculators make it easy to switch between different units of measurement. Whether you're cooking, traveling, or working on a scientific project, these tools ensure you have the correct values in the units you need.
Converters for metric and imperial units of length and distance.
Tools to convert between grams, pounds, ounces, and kilograms.
Converters for temperature, volume, area, and other measurements.
Calculate land area in acres, hectares, and other units. Estimate total cost based on unit price for real estate and land measurement.
Convert acres to square miles instantly. Enter any acreage and get the exact square mile equivalent, or convert square miles back to acres.
Convert any angle between degrees, radians, gradians, turns and π radians instantly. Enter an angle in any of six units and read the equivalents across all of them, including degrees-minutes-seconds input and an exact fraction-of-π readout.
Convert between square meters, square feet, acres, hectares, and many more area units instantly. Supports metric, imperial, and other units with bidirectional conversion.
Convert between ares and cents instantly. Enter an area in ares to get the exact cent equivalent, or convert cents back to ares with full precision.
Convert ares to hectares instantly with full precision, and see the equivalent area in square meters, acres, square feet, and more. Bidirectional conversion works both ways.
Convert distances instantly between astronomical units, meters, kilometers, light years, parsecs, solar radii, miles, and many more units. Uses the exact IAU astronomical-unit definition with bidirectional conversion.
Convert a number between billions and trillions in both directions using the exact 1 trillion = 1,000 billion relationship, with an optional scientific-notation readout in any power of ten.
Convert a decimal number to its binary representation and a binary number back to decimal. Choose a fixed bit width (4–64 bits) or a custom one, with two's complement handling for negative values.
Convert a binary (base-2) number into its hexadecimal (base-16) equivalent, or a hexadecimal number back into binary. Groups bits into nibbles and keeps the full working precision for integers of any length.
Convert a binary (base-2) number into its octal (base-8) equivalent, or an octal number back into binary. Handles non-negative integers of any length with full working precision.
Convert digital information units instantly with full precision. Enter a value in bytes, kilobytes, megabytes, gigabytes, or any of 26 byte and bit units and get equivalent values across decimal (kB, MB, GB) and binary (KiB, MiB, GiB) systems.
Convert capacitance between farads, millifarads, microfarads, nanofarads, and picofarads with full decimal precision. Enter any value in any unit and read the equivalent across all five SI submultiples, from large supercapacitor ratings down to tiny ceramic capacitor values.
Convert CCF (hundred cubic feet) to US gallons instantly. Enter any amount billed in CCF and get the US gallon equivalent, or convert gallons back to CCF for water and gas bills.
Convert CCF (hundred cubic feet) of natural gas to therms instantly. Enter CCF or therms and get the energy equivalent, or customize the conversion factor to match your gas bill.
Convert cents to dollars in both directions using the exact 1 dollar = 100 cents relationship, with optional number-notation multipliers for hundreds, thousands, millions, billions, and trillions.
Convert euro cents to euros in both directions using the exact 1 euro = 100 cents relationship, with optional number-notation multipliers for hundreds, thousands, millions, billions, and trillions.
Convert between SI and CGS units for acceleration, force, energy, pressure, dynamic and kinematic viscosity, electric charge, voltage, and magnetic fields with exact decimal conversions.
Convert a color between hex, RGB, HSL, HWB, CMYK, and Natural Colors (NCol) formats, including 148 HTML color names, with instant browser-based results.
Convert between temperature, length, area, volume, and weight units. Supports metric, imperial, and specialized units with instant bidirectional conversion.
Convert coordinates between decimal degrees (DD), degrees-minutes-seconds (DMS), and degrees-decimal minutes (DDM) with full precision. Enter latitude and longitude in any format and read all three equivalents instantly.
Convert any frequency between cycles per second (cps), hertz, kilohertz, megahertz, gigahertz, terahertz, cycles per minute, revolutions per minute, radians per second and degrees per second instantly. Enter a value in any of nine frequency fields and read the equivalents across all of them at full decimal precision.
Convert a number between crores and lakhs in both directions using the exact 1 crore = 100 lakh relationship of the Indian numbering system.
Convert a number between crores and millions in both directions using the exact 1 crore = 10 million relationship between the Indian and International numbering systems.
Calculate the volume of a box, container, or space in cubic feet from its length, width, and height. Supports inches, feet, yards, meters, centimeters, and more, then converts the result to gallons, liters, cubic yards, and other volume units.
Calculate the volume of a box, container, or space in cubic meters from its length, width, and height. Supports meters, centimeters, millimeters, feet, inches, yards, miles, and more, then converts the result to liters, gallons, cubic feet, and other volume units.
Convert a volume in cubic yards to a mass in metric tons using the substance’s density. Pick from foods, metals, non-metals, gases, and liquids, enter a custom density, or convert tons back to cubic yards with metric and imperial mass and volume units.
Convert power between decibel-milliwatts (dBm), watts (W), and milliwatts (mW) in any direction. Supports dBm to watts, dBm to milliwatts, and both reverse conversions with instant results.
Convert weights instantly between decagrams, grams, and 7 more units including micrograms, milligrams, kilograms, metric tons, pounds, and tons. Enter one value and every equivalent weight fills in automatically.
Convert a decimal (base-10) integer into its hexadecimal (base-16) representation and a two's-complement binary readout. Pick a fixed bit width (4–20 bits) or a custom one, with negative values handled via two's complement.
Convert a decimal (base-10) number into its octal (base-8) representation, or an octal number back into decimal. Handles signed and fractional values with full working precision.
Convert lengths instantly between decimeters, meters, and 14 more units, including centimeters, inches, feet, yards, and miles. Enter one value and every equivalent length fills in automatically.
Convert angles between degrees-minutes-seconds (DMS) and decimal degrees instantly, and see the same angle in radians, gradians, turns, π radians, arcminutes, arcseconds, milliradians and microradians.
Convert density between kilograms per cubic meter, kilograms per cubic decimeter, grams per cubic centimeter, pounds per cubic foot, pounds per US gallon, and other units with full-precision bidirectional results.
Compare two values of a physical quantity or convert between its units. Supports length, mass, time, temperature, area, volume, velocity, force, energy, and more with metric and imperial units.
Convert dimes to dollars in both directions using the exact 1 dollar = 10 dimes relationship, with optional number-notation multipliers for hundreds, thousands, millions, billions, and trillions.
Convert drops to milliliters and milliliters to drops instantly. Enter any number of drops (gtt) or a volume in ml and see the exact equivalent using the common 0.05 ml per drop conversion (20 drops per ml).
Add, subtract, multiply, and divide lengths entered as feet and inches. Get the result in feet and inches, square feet, or square inches with full precision.
Convert feet to inches and inches to feet instantly. Supports additional length units including millimeters, centimeters, meters, kilometers, yards, miles, and nautical miles.
Convert force between newtons, kilonewtons, dynes, pounds-force, kilograms-force, tonnes-force, poundals, kips, and other units with bidirectional results.
Convert gallons to liters, cups, quarts, pints, fluid ounces, cubic feet, and more instantly. Switch to water mode to find how much a volume of water weighs in kilograms and pounds using its density.
Convert gallons to pounds or pounds to gallons using the selected liquid density. Choose US, UK, or US dry gallons across common liquids such as water, milk, honey, gasoline, and diesel, with a custom density option for any substance.
Convert any word, phrase, or sentence into its Jewish (Hebrew), English, and Simple gematria scores, each with a per-letter breakdown.
Convert grams of carbs, protein, fat and alcohol to calories using 4, 4, 9 and 7 kcal/g, with bidirectional solving and alcohol volume to grams via ABV and density.
Convert grams to avoirdupois ounces and ounces back to grams with a precise bidirectional mass converter.
Convert any word, phrase, or sentence into its Greek gematria (isopsephy) score, with a full per-letter breakdown. Latin letters are transliterated to their Greek equivalents and each letter is scored with its classical isopsephic value.
Convert steel hardness between Brinell (HB), Rockwell B (HRB), Rockwell C (HRC) and Vickers (HV) using the standard steel conversion table. Enter any one scale and the others fill in automatically.
Convert height measurements to inches instantly. Supports centimeters, meters, feet, feet/inches, and meters/centimeters. Bidirectional conversion works both ways.
Convert a color between HEX codes and RGB values in either direction. Enter a 6-digit or shorthand 3-digit hex code to get its red, green, and blue components, or type RGB values (0-255) to get the matching hex code.
Convert torque between inch-pounds (in-lb) and foot-pounds (ft-lb) with bidirectional results using the exact 1 ft-lb = 12 in-lb relationship.
Convert decimal inches to fractional inches with customizable precision from 1/2 to 1/256. Supports mm, cm, m, ft, and yd unit conversion.
Convert joules to volts from energy and electric charge via V = E / Q. Enter any two of energy, charge, and voltage to solve the third across joules, coulombs, and volts.
Compare two JSON objects locally in your browser and get the differences between them.
Minify JSON locally in your browser. Paste raw JSON and get a compact one-line JSON output instantly.
Prettify and format JSON locally in your browser. Optionally sort keys and control indentation, then copy the formatted output.
Convert JSON to CSV with automatic header detection. Runs locally in your browser.
Convert JSON to YAML locally in your browser. Paste JSON and get clean YAML output instantly.
Convert a data size between kilobytes (kB) and megabytes (MB) in either direction using either the binary 1 MB = 1,024 kB convention used by operating systems or the SI 1 MB = 1,000 kB convention used by drive makers.
Convert kilograms to gallons and back instantly. Pick an ingredient such as water, milk, oil, flour, or sugar to apply its density, then convert weight in kg to US or UK gallons, or gallons back to kg.
Convert speed between knots, kilometers per hour, and 12 more units including m/s, mph, and light speed. Enter any speed and see the exact equivalent instantly.
Convert speed instantly between knots, miles per hour, kilometers per hour, feet per second, and meters per second. Enter any value and see every equivalent speed at full precision.
Convert latitude and longitude into a UTM zone, easting, and northing.
Convert force between pounds-force and newtons with bidirectional results using the international pound-force definition.
Translate normal text into leet-speak (1337 5p34k) or decode leet-speak back into plain text. Type or paste any text and read the translated result instantly, with digits, punctuation, and spaces preserved.
Convert lengths instantly between millimeters, centimeters, meters, kilometers, inches, feet, yards, miles, nautical miles, and many more units. Supports metric, imperial, and astronomical length units with bidirectional conversion.
Convert distances instantly between light years, kilometers, miles, astronomical units, Earth radii, Sun radii, mega light years, and mega parsecs. Uses exact IAU light-year and astronomical-unit definitions with bidirectional conversion.
This tool can process column-based data and apply various changes (add prefix and suffix, reverse list, sort list, lowercase values) to each row.
Convert liters to centiliters and back instantly. Enter any volume in liters and see the equivalent in centiliters, cubic meters, milliliters, US and UK gallons, fluid ounces, cups, and more.
Convert speed instantly between meters per second, kilometers per hour, miles per hour, feet per second, and knots, plus 18 more units including light speed and the Beaufort scale. Enter any value in either direction and read its equivalent across every unit.
Convert Markdown to HTML locally in your browser and print the result as a PDF. Paste Markdown on the left and get HTML on the right.
Convert a data size between megabytes (MB) and gigabytes (GB) in either direction using either the base-10 (SI) 1 GB = 1,000 MB convention or the base-2 (binary) 1 GB = 1,024 MB convention.
Convert data transfer rates between megabits per second (Mbit/s) and megabytes per second (MB/s) in either direction using the exact 1 MB/s = 8 Mbit/s relationship, and read equivalents across 26 decimal and binary bit and byte units.
Convert data transfer rates between megabits per second (Mbps), gigabits per second (Gbps), and gigabytes per second (GBps) in either direction using the exact 1 Gbps = 1,000 Mbps and 1 GBps = 8,000 Mbps relationships.
Convert micrograms to milligrams and back instantly. Enter a mass in micrograms and see the equivalent in milligrams, grams, kilograms, metric tons, pounds, ounces, and many more mass units.
Convert US mesh size to microns instantly using the standard sieve chart. Select from 30 standard mesh sizes from 3 to 400 mesh and read the opening size in microns.
Convert milligrams to milliliters and back instantly. Select a liquid such as water, milk, or cooking oil to apply its density, pick a medication to use its label concentration, or enter a custom density, then convert mass in mg to volume in mL or volume back to mass.
Convert a number between millions and billions in both directions using the exact 1 billion = 1,000 million relationship, with an optional scientific-notation readout of the full value in any power of ten.
Convert a number between millions and lakhs in both directions using the exact 1 million = 10 lakh relationship of the Indian numbering system.
Convert a number between millions and thousands in both directions using the exact 1 million = 1,000 thousand relationship, with an optional scientific-notation readout of the full value in any power of ten.
Convert any duration between hours, minutes, seconds, days, weeks, months and years, or read the same time in compound hours:minutes:seconds notation, with every field updating instantly at full decimal precision.
Convert milliliters to cups and cups to milliliters instantly. Enter any volume in ml or cups and see the exact equivalent using the common 237 ml per cup cooking conversion.
Convert fuel economy between US mpg, UK mpg, L/100 km and km/L instantly. Enter any one value and see the other three with inverse-proportional conversion.
Convert natural gas between volume units (ft³, Mcf, MMcf, m³, Mcm, MMcm) and energy units (therms, BTU, MBTU, MmBTU, joules, MJ, BOE, kBOE, MmBOE). Instant bidirectional conversion.
Convert torque between newton meters (N·m) and pound-force feet (lbf·ft) with bidirectional results across 11 torque units, from micronewton meters to ton-force meters.
Convert nickels to dollars in both directions using the exact 1 dollar = 20 nickels relationship, with optional number-notation multipliers for hundreds, thousands, millions, billions, and trillions.
Convert torque between newton-meters (Nm) and foot-pounds (ft-lbs) with full-precision bidirectional results, plus kilogram-force centimeters, joules per radian, and kilopondmeters.
Convert torque between newton-meters (Nm) and inch-pounds (in-lbs) with bidirectional results, plus 16 additional torque units.
Convert between newtons and joules per meter, and between joules and newton-meters, with full-precision bidirectional results. Supports force and energy units.
Convert a number to billions in one step, or convert billions back to the full number, using the exact short-scale relationship where 1 billion equals 1,000,000,000.
Convert a number to millions in one step, or convert millions back to the full number, using the exact short-scale relationship where 1 million equals 1,000,000.
Convert paper quantities between sheets, quires, reams, bundles, and bales using standard and printer-specific sheet counts.
Convert pennies to dollars in both directions using the exact 1 dollar = 100 pennies relationship, with whole-number validation for penny counts.
Convert pints to pounds or pounds to pints using the selected ingredient density, with US, UK, and US dry pint units plus a custom density option.
Convert pixels to inches or inches to pixels using the PPI of your screen. Enter any two of pixels, inches, or pixels per inch and get the third instantly at full precision.
Convert between pounds, ounces, pounds and ounces, and metric or imperial mass units, or add up pounds and ounces in one tool. Uses exact pound and ounce definitions across 14 units.
Convert power between watts, milliwatts, kilowatts, horsepower, BTU per hour, kcal per hour, ergs per second, tons of refrigeration, and other units with bidirectional results.
Convert a concentration between percent, per mille, parts per million (ppm), parts per billion (ppb), parts per trillion (ppt), and decimal fractions with full-precision bidirectional results.
Convert between parts per million (ppm) and milligrams per liter (mg/L) using solute density, and to molarity using molar mass — with 14 density units and 9 molarity scales.
Convert pressure between bar, pounds per square inch (psi), standard atmospheres, pascals, kilopascals, torr, and other units with full-precision bidirectional results.
Estimate water flow rate in gallons per minute (GPM) from a pressure reading in psi, pipe diameter, and exit pressure, or work backward to find the required pressure or pipe area.
Convert CSS font sizes between px, em, pt and percent. Set a base size (default 16 px) and enter any of the four units to get the other three instantly.
Convert quantities instantly between units, pairs, half dozens, dozens, baker’s dozens, decades, scores, grosses, and great grosses with a fully bidirectional converter.
Convert quarters to dollars in both directions using the exact 1 dollar = 4 quarters relationship, with whole-number validation for quarter counts.
Convert quarts to pounds or pounds to quarts using the selected ingredient density, with US liquid, US dry, and UK quart units plus a custom density option.
Convert radiation dose instantly between milligrays, micrograys, centigrays, rads, grays, microsieverts, millisieverts, rem, millirem, sieverts and banana equivalent doses.
Convert a color between RGB values and HEX codes in either direction. Enter red, green, and blue components (0-255) to get the matching hex code, or paste a 6-digit or shorthand 3-digit hex code to get its RGB values.
Convert root mean square (RMS) watts to peak watts and back for a pure sine wave. Enter RMS wattage to get peak wattage, or enter peak wattage to get RMS, across picowatts to petawatts.
Convert an Arabic number up to 3,999,999 into Roman numerals or read a Roman numeral back into a number. Both directions run in your browser.
Calculate scale factors and convert scaled or real dimensions for length, area, and volume.
Convert speed instantly between miles per hour, kilometers per hour, meters per second, feet per second, knots, and many more units, plus running pace. Enter any value in either direction and read its equivalent across every unit.
Prettify and format SQL locally in your browser. Choose dialect, keyword case, and indentation style, then copy the formatted output.
Convert temperature instantly between Celsius, Fahrenheit, kelvin, Rankine, Delisle, Newton, Réaumur and Rømer. Edit any scale to update the others.
Convert any duration between years, months, weeks, days, hours, minutes and seconds, or read the same time in 26 units from picoseconds to the age of the Universe, including compound hrs:min:sec notation, with every field updating instantly at full decimal precision.
Convert any date and time from UTC/GMT into 50 world time zones at once, or type a local time in any listed zone to read the same instant everywhere, including summer-time and half-hour zones.
Convert TOML to JSON locally in your browser. Paste TOML and get formatted JSON output instantly.
Convert TOML to YAML locally in your browser. Paste TOML and get clean YAML output instantly.
Calculate power and horsepower from torque and rotational speed across metric and imperial units.
Convert pressure from torr to standard atmospheres (atm) and back instantly. Enter any value in Torr or atm to convert between them, or switch to pascals, psi, and other metric and imperial pressure units for the same pressure.
Convert any text into fancy Unicode fonts: circled, squared (positive and negative), inverted, and monospaced styles. Type or paste text and copy the styled result with one click. Runs locally in your browser.
Convert a Unix epoch timestamp into a UTC date and time, or type a date and time to get its Unix time, then read the same instant across 43 time zones and their daylight-saving variants in seconds, milliseconds, microseconds, or nanoseconds.
Convert mass between metric, imperial, scientific, and astronomical units with bidirectional results.
Convert everyday measurements into fun, wacky, and relatable units — LEGO bricks, giraffes, Big Macs, Titanic ships, and more. Supports length, height, weight, time, area, speed, power, energy, sound, volume, temperature, and money with bidirectional conversion.
Prettify and format YAML locally in your browser. Optionally sort keys and control indentation, then copy the formatted output.
Convert YAML to JSON locally in your browser. Supports YAML merge keys and outputs formatted JSON for easy copying.
Convert YAML to TOML locally in your browser. Paste YAML and get clean TOML output instantly.
Convert square yards to acres instantly. Enter any area in square yards and get the exact acre equivalent, or convert acres back to square yards.
Convert any number of years to decades, or decades back to years, in either direction instantly. One decade equals exactly 10 years, so the calculator divides years by 10 and multiplies decades by 10 at full decimal precision.