Essential tools for biological research and scientific analysis
Advanced calculators for genetics, molecular biology, and laboratory research
Our biology calculators are designed for researchers, students, and professionals working in molecular biology, genetics, and related fields. These tools help you perform complex calculations with precision and accuracy, from PCR primer analysis to genetic data interpretation.
Professional-grade calculators for molecular biology and genetic research applications.
Get precise calculations for DNA, RNA, and protein analysis with advanced algorithms.
Essential tools for PCR optimization, primer design, and experimental planning.
Calculate how many acres per hour you can mow and how fast you can complete work on your field. Free online acres per hour calculator for agriculture and gardening.
Calculate allele frequencies and carrier rates using the Hardy-Weinberg equation. Estimate genetic trait probabilities from disease prevalence.
Use the animal mortality rate calculator to evaluate the level of mortality or animal death rate on a farm.
Estimate PCR primer annealing temperature (Ta) from primer and target melting temperatures (Tm). Supports °C / °F / K.
Calculate the basal area of a tree from diameter at breast height (DBH), or compute stand density for up to 50 trees. Supports metric and imperial units with multi-tree mode.
Our Benadryl dosage calculator for dogs will compute an optimal dose of Benadryl (Diphenhydramine) for your pet.
Check out this bird age calculator to convert between avian and human years.
Calculate how many flower bulbs you can fit in your garden bed with rectangular or triangular planting grids. Supports many bulb types including Allium, Tulips, Daffodils, and Crocus.
Convert your cat's age to human years and vice versa using our free online cat age calculator. Get accurate results based on veterinary research.
Use our cat Benadryl dosage calculator to compute a safe dose of Benadryl (Diphenhydramine) for your cat based on its weight. Get dosage in mg, liquid volume, and tablet count.
Calculate your cat's Feline Body Mass Index (FBMI) using rib cage circumference and lower back leg length to help assess if your cat is at a healthy weight.
Calculate the number of calories your cat needs per day based on weight and physiological condition.
Check whether the amount of chocolate your cat ate might be dangerous. Calculates methylxanthines dose, theobromine and caffeine levels, and predicts poisoning severity.
The cat pregnancy calculator will compute the due date of your favorite feline.
Use this cat quality of life calculator to assess your cat's quality of life and determine whether to proceed with hospice care. Score your cat on the HHHHHMM Scale.
What personality would you have if you were a cat? Answer 5 questions to discover your cat purr-sonality type.
Check this cattle per acre calculator to estimate the total number of cows that can graze on a pasture, depending on its condition and precipitation zone.
Solve any one of four dilution variables (C1, V1, C2, V2) with LRU bidirectional editing and volume unit support.
Estimate specific growth rate and doubling time from two measurements and an elapsed time. Supports LRU bidirectional solving and time unit switching.
Calculate the right cephalexin dosage for your cat based on weight, dose base, and drug type. Get amount per dose, daily dosage, and liquid or tablet amounts.
Calculate a cephalexin dosage for dogs based on your dog's weight, dosage per dose, and drug type.
Calculate how much CO₂ to add to your grow room or tent. Determine required CO₂ volume, optimal levels (1200-1500 ppm), and CO₂ flow rate from your tank.
Calculate how much compost you need for your garden or lawn. Free online compost calculator with volume, cost, and weight estimation. Supports bidirectional solving.
Estimate the amount of corn produced by a field based on a 1/1000 acre sample. Free online corn yield calculator with bidirectional solving.
The cow gestation calculator allows you to compute the day calving will start for different breeds of cow.
Estimate the temperature outside by counting cricket chirps with this crickets chirping thermometer calculator based on Dolbear's law.
Calculate the daily light integral (DLI) for your plants. Enter light hours and PPFD to get the total photosynthetically active radiation in mol/m²/day.
Calculate offspring genotype and phenotype probabilities for two-trait inheritance using a 4×4 Punnett Square. Predict dihybrid cross outcomes.
Calculate the concentration of DNA, RNA, or custom oligonucleotides from absorbance measurements.
DNA copy number calculator determines the number of copies of single or double-stranded DNA and RNA in a solution and per PCR cycle.
Use our DNA to mRNA converter to transcribe sequences, translate mRNA to proteins, and learn how transcription and translation work.
Convert your dog's age to human years based on breed and size.
Calculate your dog's Body Mass Index (BMI) based on breed, height, and weight to determine if they are healthy, overweight, or underweight.
The dog chocolate toxicity calculator will tell you whether the amount of chocolate your dog ate might be dangerous for it.
The dog crate size calculator will tell you the minimal dimensions of a dog kennel based on your dog's height and length measurements.
Calculate your dog's daily calorie requirements based on body weight and activity type. Determine how many cups of food to feed your dog each day.
Find the perfect harness size for your dog based on weight and chest girth measurements. Get size category and leash width recommendations instantly.
Track your dog's heat cycle with our free Dog Heat Cycle Calculator. Predict the next heat period, cycle length, and plan for breeding or spaying.
The dog life expectancy calculator estimates the age of your dog based on their breed and gives their average life expectancy.
Calculate your dog's daily calorie needs based on weight and activity level, plus how much food to feed.
The dog onion toxicity calculator will tell you whether the amount of onions consumed by your dog is toxic.
The dog pregnancy calculator provides you with your dog's due date.
Discover how to measure a dog's quality of life with our insightful pet quality of life scale calculator. Ensure their well-being now!
Calculate whether the amount of raisins your dog consumed is toxic based on their weight and the lowest reported toxic dose.
Estimate the adult weight of your puppy. Enter your puppy's age and weight to predict their full-grown size, weight range, and breed size category.
Use this dog water intake calculator to estimate the amount of water your pet needs to drink daily based on weight and activity level.
Use this dry matter calculator to find the dry matter basis percentages of your pet food so you can easily compare it with another brand of pet food you wish to try.
Calculate the feed conversion ratio (FCR) for livestock including meat, egg, and milk production. Determine feed efficiency, economic FCR, technical FCR, and total feed cost.
Calculate how much fertilizer you need to achieve a desired rate of N, P or K. Enter NPK values, lawn area, and bag weight to determine application rates and number of bags.
Use this fish oil dosage calculator for cats to determine how much fish oil you can give your cat according to its weight.
Calculate accumulated growing degree units (GDU) for crop development. Enter daily max/min temperatures, base temperature, and crop max growing temperature.
Calculate bacterial generation time, growth rate, and population size using exponential growth models.
The goat gestation calculator is here to compute the goat gestation period and tell you when you can expect the kids to appear based on the breeding date.
Calculate the capacity, volume, bushels, and total grain weight of round or rectangular grain bins. Free online grain bin bushel calculator.
Convert the mass of agricultural products into bushels. Select from 50+ commodities and calculate pricing per unit mass, per bushel, and total value. Compare two commodities side by side.
Calculate how much grass seed you need for your lawn. Choose from rectangular, circular, elliptical, or triangular lawn shapes and set the coverage rate.
The guinea pig pregnancy calculator will tell you the date when you can expect your guinea pig to give birth to little pups.
Convert your guinea pig's age to human years with this easy-to-use calculator.
Get to know how old is your hamster in human years with this hamster age calculator.
Estimate your horse's actual weight and ideal weight using four measurements: height, neck circumference, girth circumference, and body length.
Estimate your kitten's future adult weight based on its current age and weight. Predicts small, medium, or large cat size using a simple growth formula.
Estimate lawn mowing costs by area or per hour. Calculate mower efficiency and mowing time for your lawn.
Estimate the insert DNA mass needed for a ligation reaction from insert/vector sizes, vector DNA mass, and molar ratio.
Llama calculator will help you determine the expected delivery date for your pregnant llama.
Convert CFU changes into log reduction and percent reduction. Supports scientific-notation style multipliers and LRU bidirectional solving.
The mare gestation calculator will estimate the foaling date of your horse.
Calculate the appropriate Metacam (meloxicam) dosage for your cat based on weight and indication. Get the right dose for post-operative pain, acute, or chronic musculo-skeletal disorders.
This Metacam dosage calculator for dogs counts the correct dose of the drug Metacam (meloxicam) for your best friend.
Calculate the mixed liquor volatile suspended solids (MLVSS) concentration in an aeration tank using laboratory or industrial methods for wastewater treatment analysis.
Estimate the amount of mulch needed for your garden or landscaping project based on area and depth. Calculate total cost by bag or by volume, and estimate weight by mulch type.
Calculate pet sitting costs from hours, days, and hourly rate, or find the hourly pet sitting rate from the total cost. Supports multiple currencies with live exchange rates and flexible time units.
Calculate how many bales of pine straw you need for your landscaping project. Free online pine straw calculator for gardening and mulching.
Calculate the number of plants you can grow on your farm field. Free online plant population calculator for agriculture and gardening.
Optimize your garden layout with our plant spacing calculator. Determine how many plants you need for an area, the planting grid and spacing, and estimate total plants cost.
Calculate the amount of potting soil needed for your rectangular, round, or flower pot containers. Supports multiple measurement units, container quantity, and bidirectional solving.
Calculate protein concentration from UV absorbance measurements using the Beer-Lambert law. Supports multiple proteins with preset extinction coefficients.
Calculate the molecular weight of a protein from a custom list of amino acids. Supports up to 20 standard amino acids with automatic water loss correction for peptide bonds.
Calculate offspring genotype and phenotype probabilities using the Punnett Square method. Predict Mendelian inheritance patterns for genetic traits.
The rabbit cage size calculator helps you understand how big rabbit cages need to be and choose the right cage size for your rabbit.
The rabbit color calculator finds the possible colors of bunnies using the combinations of genes. Predict rabbit fur colors based on parental genetics.
This rabbit gestation calculator will help you to keep track of the milestones in your bunny's pregnancy.
Calculate the total volume of soil needed for your raised beds. Supports multiple units, bed quantity, and predefined or custom soil mix recipes for topsoil, compost, and aeration materials.
Use the rat cage calculator to find out how much space your rat (or rats!) needs. Calculate cage volume and determine how many rats can fit comfortably.
Calculate the perfect raw food portions for your dog based on weight, life stage, and the BARF model. Get daily amounts for muscle meat, bone, organs, vegetables, and more.
The sheep gestation calculator calculates the expected delivery date of your pregnant sheep.
Calculate the sod area, number of rolls, and total cost for a lawn, including waste, unit conversion, and currency conversion.
Calculate the volume, weight, and cost of topsoil needed for your garden or yard. Enter dimensions, depth, and density to determine the required soil amount.
Swine gestation calculator will tell you the date of your pig's farrowing.
Calculate the safe tramadol dosage for your dog based on their weight. Get recommended dose range, maximum daily limit, and tablet count.
Estimate the age of your tree by measuring its circumference or diameter at breast height. Select a tree species to get its growth factor and calculate the years it has been growing.
Calculate the diameter of a tree at breast height (DBH) from its circumference. Supports single-stemmed and multi-stemmed trees with bark thickness adjustments for under-bark diameter.
Estimate the height of a tree or other tall object using trigonometry (angles and distance) or the shadow method. Supports multiple tree locations and unit systems.
Estimate the number of leaves on a tree using plate sampling, crown diameter, and Leaf Area Index (LAI). Calculate how many bags you need to gather autumn leaves and how many leaves are in a pile.
Calculate how many trees you can plant in your field or garden based on planting area dimensions and recommended tree spacing.
Estimate the value of a tree using its circumference, height, and species type. Calculate compensation for tree damage or loss with this easy tree worth calculator.
Trihybrid cross calculator allows you to create a Punnett square for 3 different traits easily.
Ever wondered what size tank your pet turtle needs? Check out this turtle tank size calculator!
Calculate how many vegetable seeds and seedlings you need for your garden. Enter row length, number of rows, and seed type to get the optimal spacing and count.
Estimate your vegetable garden yield based on crop type, row length, and number of rows. Also calculates the required garden length, width, and area.
Calculate the vapor pressure deficit (VPD) for plants. Enter air temperature, relative humidity, and canopy temperature to optimize your growing environment.
Calculate activated sludge process parameters for wastewater treatment: BOD, COD, F/M ratio, HRT, MCRT, sludge age, and SVI. Supports 6 calculation modes with metric and imperial units.
Calculate the water potential and its components for plant and soil systems. Enter osmotic, pressure, gravitational, hydrostatic, overburden, and matric potentials to compute the total water potential.
Calculate the exact amount of dry water-soluble fertilizer needed to prepare a nutrient solution with a target concentration of any element. Supports N-P-K labels, elemental percentages, ppm and molar concentrations.
Explore our calculators and make your research calculations faster and more reliable.
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