9kg Gas Bottle Weight – 45kg Gas Bottle Weight – How Much Does a 9kg Gas Bottle Weigh When Full
The 9kg gas bottle weight full, for SWAP’n’GO gas bottles, includes the weight of the 9kg gas bottle plus the 9kg of bottle LPG gas, which is a 9kg gas bottle weight of approximately 16.8 to 19.4 kg.
Similarly, the 45kg of the LPG plus the empty weight of the bottle is how much a 45kg gas bottle weighs when full of bottle LPG gas, which is approximately 78kg.
Full Weight = Empty (Tare) Weight + Weight of the Contents.
Knowing the weight of full and empty LPG gas bottles – is important.
It is arguably the best way to determine how much bottle LPG gas is left.
Weight of LPG (Contents) = Full Weight – Empty Weight
Gas Bottle Empty Weight (Tare Weight) 9kg Gas Bottle Weight
The empty weight of a 9 kg gas bottle is the tare weight (gas bottle weight empty).
Tare weight is synonymous with empty weight or unladen weight.
Gas bottles typically have the “tare weight” stamped into the metal neck ring.
It is sometimes abbreviated as “T.W.”.
Not all tare weights are equal, even if it is the same size gas bottle (e.g. 9kg or 20lb).
For example, the tare weight of steel SWAP’n’GO 9kg gas bottle typically ranges from 7.8 to 10.4 kg (gas bottle weight empty) and some exceptions may even fall outside of this range.
This is as a result of the manufacturing variances between all of the different gas bottle manufacturers.
The variances for SWAP’n’GO gas bottles and others include different dimensions and dissimilar thicknesses of steel used in the manufacturing of the vessels.
This blog includes two LPG conversion charts (towards the end) with all of the tare weights for common Australian gas bottle sizes and US propane tank sizes.
There is also information regarding Indian 14.2kg domestic cooking gas cylinders.
LPG (Propane) Specific Gravity – Density of Bottle LPG Gas
When determining the weight of the bottle LPG gas 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. It actually weighs 0.51lbs.
This is because the density or specific gravity of the bottle LPG gas is less than water.
In countries where LPG is propane (e.g. Australia and USA), 1kg of LPG has a volume of 1.96L.
In NZ, LPG is a mix or propane and butane, with the exact specific gravity dependent upon the percentages.
Conversely, 1L of LPG (propane) weighs 0.51kg.
1 US gallon of bottle LPG gas weighs approximately 4.23lbs, instead of the 8.34lbs it would weigh if it was water.
Net Weight of the Bottle LPG Gas – LPG (Propane)
The net weight is the weight of the actual bottle LPG gas contents.
The units of measure can vary based on location and method of delivery.
In metric units, kilograms (kg) are units of mass generally used when cylinders are refilled on an exchange basis.
Litres are used when the LPG is supplied by tanker and must be converted to kilograms to determine net or gross weight.
Pounds are used in countries that use the imperial or United States customary units of measure for mass, when bottle LPG gas is refilled on an exchange basis.
Gallons are used when the bottle LPG gas is supplied by tanker and must be converted to pounds to determine net or gross weight.
9kg Gas Bottle Full Weight = Gross Weight
As an example, the full weight of the 9kg gas bottle, is the combination of the tare weight and net weight of bottle LPG gas.
In other words, the full weight is equal to the weight of the empty gas bottle plus the weight of the bottle LPG gas contents.
Full Weight = Empty Weight + Weight of the Contents.
Determining Weight of SWAP’n’GO 9kg Gas Bottle Using a Scale
With SWAP’n’GO gas bottles (9kg gas bottles) you can determine how much bottle LPG gas is contained in the bottle by weighing it on a scale.
Just place it on the scale to get the full weight and then subtract the tare weight value to determine the amount of bottle LPG gas contained within the gas bottle.
How Much Does a 9kg Gas Bottle Weigh When Full? SWAP’n’GO 9kg Gas Bottle
How much does a 9kg gas bottle weigh when full of LPG gas?
With SWAP’n’GO gas bottles, a 9kg gas bottle weighs 7.8 to 10.4 kg when empty and 16.8kg to 19.4kg when filled with 9kg of LPG gas. (approximate)
This 9kg gas bottle weight will vary based on the weight of 9kg gas bottle empty, as there are considerable variances between the various gas bottle manufacturers. The same is true for 4kg gas bottles.
A 4kg gas bottle at SWAP’n’GO weighs 4.5 to 6.6kg empty and 8.5kg to 10.6kg when filled with 4kg of LPG gas. (approximate)
How Many Litres of Gas in a 45kg Bottle?
There are approximately 88 litres of bottle LPG gas in a 45kg bottle.
This is based on 1kg = 1.96L. So, 45 x 1.96 = 88.2L.
Gas Bottle Size & Tare Weight Charts
The first chart is for countries that use the standard metric system, whilst the second chart is for imperial or United States customary units of measure.
The following are common LPG gas bottle sizes and approximate tare weights for Australia (including SWAP’n’GO gas bottles):
Tare Weights & Full Weights of Common LPG Gas Bottle Sizes
| Weight of Contents Only | Content Volume in Litres | Tare (Empty) Weight | Total Full Weight |
| 4kg | 7.84L | 4.5 to 6.6kg | 8.5 to 10.6kg |
| 9kg | 17.64L | 7.8 to 10.4 kg | 16.8 to 19.4 kg |
| 15kg | 29L | 10kg | 25kg |
| 18kg | 35L | 18kg | 36kg |
| 45kg | 88L | 33kg | 78kg |
| 90kg | 176L | 65kg | 155kg |
| 210kg | 411L | 140kg | 350kg |
All weights shown are approximate.
India 14.2kg Gas Cylinders Tare Weight & Full Weight
I see frequent enquiries regarding the weight of domestic cooking gas cylinders in India.
The standard cooking gas cylinder in India has a net weight of 14.2kg ± 150 grams of bottle LPG gas.
The empty cylinders have a tare weight of approximately 15.3kg.
The tare weight will vary from cylinder to cylinder, as the result of manufacturing variances.
The exact tare weight is printed on the individual cylinders.
Tare Weight + 14.2kg bottle LPG gas = Full Weight
That means that the gross weight of a full 14.2kg cylinder is approximately 29.5kg.
What is the Amount of Liquid in 14.2 kg Gas Cylinder?
It’s actually a 14.2 kg gas cylinder, if we are talking about India.
To calculate volume, in bottle LPG gas 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 of bottle LPG gas in a 14.2 kg 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.
How Many Gallons is 100 Pound Propane Tank?
A pound of propane equates to 0.236 gallons.
Therefore, 23.6 gallons is 100lb propane tank containing bottle LPG gas.