Biology Calculators

Raw Dog Food Calculator

Free online Raw Dog Food Calculator. Quickly calculate and get instant results.

Sheep Gestation Calculator

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

Sod Calculator

Estimate sod needed from rectangular area, roll coverage, and waste/overage; returns total area and

Swine Gestation Calculator

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

The Cost of Owning a Dog Calculator

Estimate total and average cost of owning a dog using one-time costs plus monthly and annual recurri

Tramadol for Dogs Calculator

Estimates tramadol amount per dose and per day from dog weight, mg/kg dosing, and doses/day.

Tree Diameter Calculator

Computes tree trunk diameter from measured circumference using D = C/π.

Tree Height Calculator

Estimates tree height using distance and angle to the top (tan method) plus observer eye height.

Tree Leaves Calculator

Estimates number of leaves from LAI, canopy ground area, and average leaf area.

Tree Spacing Calculator

Calculates planting density from row spacing and in-row spacing (trees per hectare and per acre).

Tree Value Calculator

Estimates tree value from DBH cross-sectional area, unit value, and species/condition/location ratin

Trihybrid Cross Punnett Square Calculator

Computes gamete counts and Punnett square size for a trihybrid cross based on heterozygous loci coun

Turtle Tank Calculator

Estimates minimum turtle tank volume using ~10 gallons per inch of shell length per turtle and chose

Vapor Pressure Deficit Calculator

Calculates VPD (kPa) from air temperature and relative humidity using the Tetens saturation vapor pr

Vegetable Seed Calculator

Estimates seeds needed from total row length, in-row spacing, seeds per spot, and expected germinati

Vegetable Yield Calculator

Estimates plant density and total vegetable yield from spacing, area, per-plant yield, and survival

Wastewater Calculator

Computes influent/effluent loads and removal efficiencies for BOD and TSS from flow and concentratio

Water Potential Calculator

Calculates water potential (Ψw) as the sum of solute potential (Ψs) and pressure potential (Ψp).

Water Soluble Fertilizer Calculator

Finds grams of water-soluble fertilizer needed to achieve a target N ppm in a given solution volume.