Biology
Genetics, cellular biology, and animal health.
Animal Pregnancy
Calculate the expected kindling date for a pregnant rabbit.
Estimate the foaling date for your horse based on the breeding date.
Calculate the expected lambing date for your sheep.
Calculate the expected farrowing date for pigs.
Calculate the expected kidding date for goats.
Calculate the expected delivery date for guinea pigs.
Calculate the expected delivery date for llamas.
Estimate the hatching date for various bird species.
Animals
Bio Laboratory
Calculate the optimal annealing temperature (Ta) for PCR primers.
Calculate how to dilute your cell suspension to reach a target concentration and volume using the C1V1 = C2V2 formula.
Calculate DNA concentration from absorbance readings (A260).
Calculate the log reduction and percent reduction of microorganisms.
Calculate protein concentration using the Beer-Lambert law.
Calculate the generation time and growth rate of a bacterial population.
Calculate the doubling time of a cell culture based on growth data.
Calculate cell concentration and total cell count using a hemocytometer.
Estimate the molecular weight of a protein based on the number of amino acids.
Calculate molarity, mass, or volume for solution preparation.
Determine the optimal mass of insert and vector for a ligation reaction.
Calculate the population of lactic acid bacteria in fermentation.
Calculate the required oxygen for wastewater treatment.
Calculate Mixed Liquor Volatile Suspended Solids (MLVSS).
Calculate the growth rate of a bacterial population in a batch culture.
Calculate the total magnification of your microscope.
Calculate how long it takes for a bacterial population to double.
Botany & Ecology
Estimate the age of a tree without cutting it down.
Calculate total water potential in plant cells.
Estimate the air temperature by counting cricket chirps (Dolbear's Law).
Measure the relative growth rate (RGR) of your plants.
Calculate the Leaf Area Index of a forest canopy or crop stand.
Calculate the volume of water in your garden pond.
Estimate the rate of water loss from a plant due to transpiration.
Calculate the number of plants per square meter.
Calculate the ratio of leaf area to leaf dry mass.
Cat Calculators
Calculate your cat's Body Mass Index.
Assess the risk level if your cat has consumed chocolate.
Determine the daily calorie needs for your cat.
Calculate the recommended Omega-3/Fish Oil dosage for your cat.
Calculate the safe Benadryl dosage for your cat.
Calculate the recommended cephalexin antibiotic dose for your cat.
Calculate the correct dose of Metacam (meloxicam) for your cat.
Dog Calculators
Calculate the safe Benadryl dosage for your dog based on its weight.
Check if the amount of chocolate your dog ate is dangerous.
Convert your dog's age into human years.
Calculate your dog's Body Mass Index.
Estimate how much water your dog should drink daily.
Estimate the adult weight of your puppy based on its current age and weight.
Calculate the recommended cephalexin antibiotic dose for your dog.
Find the ideal crate size for your dog based on its measurements.
Estimate your dog's life expectancy based on breed size and health.
Track and predict your dog's next heat cycle.
Check if the amount of onion consumed by your dog is dangerous.
Check if the amount of raisins eaten by your dog is toxic.
Calculate the recommended Omega-3 dosage for your dog.
Calculate the correct dose of Metacam (meloxicam) for your dog.
Calculate the recommended tramadol dose for your dog.
Calculate how much raw food to feed your dog daily based on weight and activity.
Determine the correct harness size for your dog.
Gardening & Crops
Estimate the potential corn yield of your field.
Calculate Vapor Pressure Deficit (VPD) for indoor growing environments.
Calculate the amount of grass seed required for a new lawn or overseeding.
Calculate how many seeds or seedlings you need for your vegetable garden.
Calculate how many sod rolls you need for a new lawn.
Calculate plant density per acre or hectare.
Calculate accumulated heat units for crop development.
Estimate the harvest yield for various vegetables in your garden.
Calculate the volume of CO2 needed to reach target levels in a grow tent.
Calculate the total amount of photosynthetically active radiation (PAR) received by a plant daily.
Estimate the cost of mowing a lawn based on area and local rates.
Calculate the field capacity (acres/hour) of your farm machinery.
Calculate the germination percentage of a seed batch.
Calculate the porosity of soil based on bulk and particle density.
Calculate the carbon-to-nitrogen ratio of your compost mix.
Genetics
Predict the probability of offspring genotypes based on parental alleles.
Calculate the number of DNA copies in a sample based on concentration and length.
Calculate PCR efficiency from the slope of a standard curve.
Calculate allele frequencies in a population using Hardy-Weinberg equilibrium.
Calculate allele frequencies using the Hardy-Weinberg equation.
Transcribe a DNA sequence into its corresponding mRNA sequence.
Translate a DNA sequence into a protein sequence using the genetic code.
Calculate genotypic and phenotypic ratios for a two-trait cross.
Predict the outcomes of a three-trait genetic cross.
Health & Pets
Estimate how much water you or your pet should drink daily.
Convert your cat's age into human years.
Calculate the Resting Energy Requirement (RER) for your dog.
Calculate the volume of your fish tank in gallons and liters.
Convert your chinchilla's age into human years.
Convert your bird's age into human years.
Convert your hamster's age into human years.
Determine the appropriate tank size for your pet turtle.
Estimate your horse's weight using body measurements.
Calculate the amount of salt needed for your aquarium.
Estimate earnings for pet sitting services.
Convert your guinea pig's age into human years.
Calculate the minimum cage size for your pet rabbit.
Calculate how many rats a cage can comfortably hold.
Convert pet food nutrients to a dry matter basis for accurate comparison.
Calculate the amount of food needed for your fish based on their biomass.
Assess the status of your aquarium's biological filter.
Livestock
Measure the efficiency of converting feed into animal body mass.
Calculate the mortality rate for a group of animals.
Estimate the stocking rate for cattle on a pasture.
Calculate the storage capacity of a circular grain bin.
Estimate the cost of materials for a livestock fence.
Estimate the honey yield from a bee hive.
Trees & Forestry
Estimate the height of a tree using trigonometry.
Calculate tree diameter from circumference (DBH).
Calculate the basal area of a tree or a forest stand.
Estimate the monetary value of a landscape tree.
Estimate the number of leaves on a tree based on its size.
Calculate how many trees can be planted in a given area based on spacing.