How many gallons is 80 lbs of propane?
How many gallons is 80 lbs of propane?
Answer
The density of propane is 0.5076 kg/L (liquid propane at 15 °C, or 59 °F; it gets lighter as it warms), so one US gallon of it weighs 4.24 lbs.
In imperial (UK) gallons of 4.54609 L instead of 3.785411784 L, 80 lbs of propane would be 15.7 UK gallons.
How the volume of 80 lbs of propane was worked out
A US gallon is exactly 3.785411784 liters and a pound is exactly 0.45359237 kilograms: the weight becomes kilograms, and the density turns kilograms into liters — and the liters become gallons.
80 lb × 0.45359237 ÷ (0.5076 kg/L × 3.785411784)
≈18.9 US gallons
(eighteen point nine gallons)
The density comes from ISO 3993:1984: liquid propane at 15 °C, or 59 °F; it gets lighter as it warms.
The other way round: what one US gallon of this weighs
This page starts from a weight and answers in gallons. The opposite question — how much a given number of gallons weighs — is what the gallons to pounds calculator is for, and in metric units the same question is liters to kilograms. All of them read one density table, so their numbers agree.
For propane the density is 0.5076 kg/L, so 80 lbs is 18.9 gallons — and one US gallon of it weighs 4.24 lbs.
If the substance is not known in advance, start from how many gallons 80 lbs is — the same weight across every substance at once.
Related Calculations
See Also
- Gallons to Pounds - How much a gallon of water, milk, gasoline, diesel, oil or propane weighs in pounds — by density
- Pounds to Liters - How many liters a pound of water, milk, oil or propane takes — by density
- Kilograms to Liters - How many liters are in a kilogram of water, honey, gasoline, sand and other substances — by density
- Liters to Gallons - Convert Liters to US Gallons
- Lbs to Kg - Convert Pounds to Kilograms
<a href="https://calculat.io/en/volume/lbs-to-gal/80--propane">80 lbs of propane in gallons — 18.9 gallons - Calculatio</a>
How many gallons 80 lbs of each substance takes
| Substance | Volume of 80 lbs | One US gallon weighs | Density, kg/L |
|---|---|---|---|
| Milk | 9.31 gallons | 8.6 lbs | 1.03 |
| Propane | 18.9 gallons | 4.24 lbs | 0.5076 |
| Vegetable oil | 10.4 gallons | 7.68 lbs | 0.92 |
| Water | 9.61 gallons | 8.33 lbs | 0.998 |