Water Weight Calculator

Calculate the Weight of Water by Volume

Understanding Water Weight Calculations

Water Weight Facts

Pure water at room temperature (70°F/21.1°C) has these properties:

  • 1 gallon = 8.34 pounds
  • 1 liter = 1 kilogram
  • 1 cubic foot = 62.4 pounds
  • 1 cubic meter = 1000 kilograms

Common Applications

  • Tank and container sizing
  • Swimming pool maintenance
  • Construction projects
  • Shipping calculations