Gallons per Square Foot Calculator Gallons per Square Foot Calculator Calculate volume in gallons and area coverage for water and other liquids Area to Gallons Gallons to Area Calculate Gallons
Cubic Yard Calculator Cubic Yard Calculator Calculate volume in cubic yards for different shapes Select Shape: Rectangular Prism (Box) Cylinder Hollow Cylinder (Pipe/Ring) Cone Sphere Triangular Prism Height Length Width
Board Foot Calculator Board Foot Calculator Calculate board feet and cost for lumber purchases Number of Pieces: Thickness: inches Width: inches Length: feet inches Price per Board Foot: $ Calculate
Fish Mercury Calculator Fish Mercury Calculator Mercury per serving of fish Fish Select Marlin Swordfish Shark (all) Tuna (wild bluefin) Grouper Trout Tuna (canned white) Tuna (fresh Albacore) Snapper Bass
Lotka-Volterra Predator-Prey Calculator Lotka-Volterra Predator-Prey Calculator Equation Parameters Reproduction rate of prey (α) Rate at which prey population grows in absence of predators Mortality rate of predator per prey (β)
Shannon Diversity Index Calculator Calculate diversity metrics for ecological studies or species distributions. Enter up to 40 numbers (new rows will appear): Population 1 Logarithm's base Natural logarithm (e) Base
Population size ... Water requirement per capita i ... L/day gal/day Average water demand i ... L/day m³/day Maximum water demand i ... L/day m³/day Peak water demand i ...
Water you drink ... daily weekly monthly People in household ... ▲ Tap water Cost ... $ / m³ / gal / L Money spent ... $ / yr /
Drip Faucet Calculator Calculate how much water is wasted from leaking faucets Number of leaking faucets: Drips per minute (per faucet): Time period: Days Weeks Months Years Unit system:
Will you clean up only once or regularly? only once regularly Number of participants Time cleaning min How often will you clean up? / wk Area Heavily polluted (city park,