# Domestic Gas Cylinder Weight

## LPG (Propane) Specific Gravity - Density

When determining the weight of the contents, it is important to know that the density of LPG – propane – is only about half that of water.

Unlike water, 1kg of LPG does NOT equal 1L of LPG.

1 pint of propane does not weigh ≈ 1lb.  1 pint of LPG (propane) actually weighs 0.51lbs.

This is because the density or specific gravity of LPG is less than water.

In countries where LPG is propane (e.g. Australia and USA), 1kg of LPG has a volume of 1.96L.

Conversely, 1L of LPG weighs 0.51kg.

1 US gallon of propane weighs approximately 4.23lbs, instead of the 8.34lbs it would weigh if it was water.

## An aluminium 15kg gas bottle (15kg LPG cylinder) has an forklift propane tank empty weight of 9.7kg and a forklift propane tank full weight of 24.7kg. A steel 18kg forklift gas bottle has an forklift propane tank empty weight of 18.0kg and a forklift propane tank full weight of 36.0kg.

Forklift Propane Tank Weight
Forklift Propane Tank Weigh 15kg Gas Bottle (15kg LPG Cylinder): Aluminium 18kg Forklift Gas Bottle: Steel
Forklift Propane Tank Tare Weight 9.7 kg 18.0 kg
Forklift Gas Bottle Full Weight 24.7 kg 36.0 kg
Forklift Gas Bottle Energy Content 181MJ 417MJ

## Cooking gas cylinder weight is actually a net 14.2 kg LPG gas cylinder, if we are talking about India.

To calculate volume, in litres, takes some simple arithmetic.

For LPG (propane) 1kg = 1.96L.  Therefore, 14.2kg = 27.832L

For LPG (butane) 1kg = 1.724L.  Therefore, 14.2kg = 24.48L

With a 75:25 butane:propane mix, 1kg = 1.783L.

#### Therefore, there is 25.34L in a 14.2 kg LPG gas cylinder.

Please be aware that unlike water, 1kg of LPG does NOT equal 1L of LPG.

This is because the density or specific gravity of LPG is less than water.

In Australia, where LPG is propane, 1kg of LPG has a volume of 1.96L.
Conversely, 1L of LPG weighs 0.51kg.