How many kilograms are in 100 liters of gasoline?

"Liters to Kilograms" Calculator
How many kilograms in
L

How many kilograms are in 100 liters of gasoline?

Answer

100 liters of gasoline weighs
74 kg

The density of gasoline is 0.74 kg/L (at 15 °C; the exact figure comes with the batch certificate). The source gives a band of 0.725–0.78 kg/L.

How the mass of 100 liters of gasoline was worked out

mass = volume × density

0.74 kg/L × 100 L

=

74 kg

The density comes from GOST 32513-2023 (Russian fuel standard). At 15 °C; the exact figure comes with the batch certificate.

Why a liter and a kilogram are not the same thing

A liter measures volume, a kilogram measures mass, and density is what ties them together: how many kilograms one liter of this particular substance comes to. The coincidence that makes people treat them as one thing is historical — in 1795 the gram was defined as the mass of one cubic centimeter of water, so a liter of water weighed a kilogram by construction. For anything else the equality breaks.

The extremes of this page make it obvious: one liter of LPG weighs 0.51 kg, while one liter of densely packed sand weighs 2 kg — four times more at the very same volume.

If the substance is not known in advance, start from how many kilograms are in 100 liters — the same volume across every substance at once.

The other way round: how much room a kilogram takes

This page starts from a volume and answers in kilograms. The opposite question — how many liters a given mass comes to — is what the kilograms to liters calculator is for. Both read the same density table, so the two pages agree wherever the answer is volume times density.

For gasoline that means 100 liters weighs 74 kg here, and one kilogram of it takes 1.35 liters there.

See Also

About "Liters to Kilograms" Calculator

This calculator converts liters to kilograms through the density of the substance: mass equals volume times density. A liter on its own has no weight — a liter of water weighs almost exactly a kilogram, a liter of honey close to one and a half, and a liter of gasoline about three quarters. For example, it can help you find out how many kilograms are in 100 liters of gasoline? (The answer is: 74). For bulk materials — cement, sand, soil, coal, vegetables — density depends on how the material is packed, so the page prints a range and names the state it was measured in, instead of passing one number off as a physical constant.
"Liters to Kilograms" Calculator
How many kilograms in
L

How much 100 liters of each substance weighs

SubstanceMassDensity, kg/L
Beer101 kg1.01
Cement125–140 kg1.25–1.4
Coal65.4–126.6 kg0.654–1.266
Cucumbers62–64 kg0.62–0.64
Diesel83.4 kg0.834
Gasoline74 kg0.74
Honey142 kg1.42
Juice106 kg1.06
LPG51 kg0.51
Milk103 kg1.03
Mineral spirits78 kg0.78
Motor oil85 kg0.85
Sand165–200 kg1.65–2
Soil130–150 kg1.3–1.5
Sugar72–90 kg0.72–0.9
Tomatoes55–60 kg0.55–0.6
Vegetable oil92 kg0.92
Wall primer100 kg1
Water99.8 kg0.998

FAQ

How many kilograms are in 100 liters of gasoline?

100 liters of gasoline weighs 74 kg

How do you work out the mass of 100 liters of gasoline?

Mass equals volume times density. The density of gasoline is 0.74 kg/L and the volume is 100 liters, which gives 74 kg.

How accurate is the density of gasoline?

The figure comes from GOST 32513-2023 (Russian fuel standard). At 15 °C; the exact figure comes with the batch certificate. Within the band of 0.725–0.78 kg/L the answer shifts a little, and at household volumes that shift is usually smaller than the error of a kitchen scale.

Is 100 liters of gasoline heavier or lighter than water?

Gasoline has a density of 0.74 kg/L against 0.998 for water, so the same 100 liters weighs 74 kg instead of 99.8 kg. This is exactly why the everyday shorthand "a liter is a kilogram" only holds for water.