Gallons to Pounds
Convert US or imperial gallons to pounds using the liquid density you supply.
Formula
kg = liters × density(kg/m³)/1000; lb = kg/0.45359237
Liquid volume: 1 US gal · Liquid density (example): 62.4 lb/ft³ · Kilograms ≈ (1 US gal × 3.785411784 L/US gal)×(62.4 lb/ft³ × 16.01846337 kg/m³/lb/ft³)÷1000 · Pounds ≈ (3.783716353)÷0.45359237
How to use
- Choose US gallons, imperial gallons or liters.
- Enter volume and the liquid density.
- Read pounds and kilograms.
Examples
- 10 L at 800 kg/m³ gives 8 kg, about 17.6370 lb.
Frequently asked questions
Is there one gallons-to-pounds factor?
No. Volume becomes mass only when density is known.
Are US and imperial gallons equal?
No. A US gallon is 3.785411784 L; an imperial gallon is 4.54609 L.
Is 1000 kg/m³ exact for water?
It is a rounded example. Use density at your liquid’s temperature and composition.
Sources
Updated: