Tank Volume Calculator

Estimate the total capacity and filled volumes in gallons and liters of tanks such as oil tanks and water tanks. Assumes inside dimensions of the tank. Enter U.S. dimensions in feet (ft) or inches (in), or metric dimensions in meters (m) or centimeters (cm). Results are presented in U.S. fluid gallons, Imperial (UK) gallons, cubic feet (ft³), metric liters and cubic meters (m³).