`"Weight of Stored Water" = V *8.34("lb"/"gal")`

Enter a value for all fields

The Weight of Water calculator computes the weight (mass) of a volume (V) of water.

INSTRUCTIONS: Choose units and enter the flowing;

• (V) Volume of Water

Water Weight (W):  The calculator returns the weight of water in pounds.  However, this can be automatically converted to other mass and weight units (e.g. kilograms or metric tons) via the pull-down menu.

The Math / Science

The Density of Water is 1,000 kilograms per cubic meters. The formula for mass is:

              M = D • V

where:

• M is the mass
• D is the density (mean density)
• V is the volume.

The mean density (mD, μD or ρ) of many common substances, elements, liquids and materials can be found by clicking HERE (e.g. the μD_(water) is 1,000 kg/m³).

Resources:

• Lancaster, Brad, and Joe Marshall. Rainwater Harvesting for Drylands. Vol. 1. Tucson, AZ: Rainsource, 2006. Print.