Biology Calculators

Hardy-Weinberg Calculator

Calculate Hardy-Weinberg genotype frequencies.

Horse Gestation Calculator

Free online Horse Gestation Calculator. Quickly calculate and get instant results.

Horse Weight Calculator

Estimate a horse’s body weight from heart girth and body length using a common tape formula: (girt

How Big Will My Cat Get Calculator

Rule-of-thumb estimate of adult cat weight from current weight and age: adult ≈ current × (12/age

Ligation Calculator

Compute insert mass (ng) for a ligation using DNA lengths and desired insert:vector molar ratio: ins

Livestock Fence Calculator

Estimates fence perimeter, posts, and wire needed for a square or circular pasture with gates.

Llama Calculator

Estimates daily and total hay needs for llamas from weight, intake rate, hay dry matter, and days.

Log Reduction Calculator

Computes log10 reduction, reduction factor, and percent reduction from initial and final microbial c

MLVSS Calculator

Calculates MLSS, MLVSS, and volatile fraction from gravimetric masses and filtered sample volume.

Mowing Cost Calculator

Estimates mowing time and total cost from area, mower width, speed, efficiency, labor, fuel, and mai

Omega 3 for Dogs Calculator

Estimate daily EPA+DHA omega-3 dose for a dog and approximate capsules per day.

Osmolarity Calculator

Calculate osmolarity from molarity.

Pet Sitter Rates Calculator

Calculate pet sitting cost from per-visit rates, extra pets, surcharges, and tip.

Photosynthesis Rate Calculator

Calculate the rate of photosynthesis.

Plant Population Calculator

Free online Plant Population Calculator. Quickly calculate and get instant results.

Plants Calculator

Estimate how many plants fit in a rectangular area based on plant and row spacing.

Potting Soil Calculator

Compute potting soil volume for rectangular containers in cubic feet, yards, and liters.

Protein Concentration Calculator

Calculate protein concentration from mass and volume; outputs mg/mL (also g/L and µg/µL).

Protein Molecular Weight

Estimate protein molecular weight from amino acid count.

Protein Molecular Weight Calculator

Estimate protein molecular weight from amino-acid length using an average residue mass (default ~110

Punnett Square Calculator

Calculate offspring genotype probabilities.

QPCR Efficiency Calculator

Compute qPCR efficiency from standard-curve slope: E = 10^(-1/slope) − 1 (also shown as %).

Rabbit Color Calculator

Single-locus rabbit coat trait (A dominant over a): compute offspring genotype and dominant/recessiv

Rabbit Gestation Calculator

Free online Rabbit Gestation Calculator. Quickly calculate and get instant results.