How many kilograms are in 1 liter of beer?

"Liters to Kilograms" Calculator
How many kilograms in
L

How many kilograms are in 1 liter of beer?

Answer

1 liter of beer weighs
1.01 kg

The density of beer is 1.01 kg/L (lager 1.005, ale 1.003–1.018, pilsner at 4 °C 1.008). The source gives a band of 1.003–1.018 kg/L.

How the mass of 1 liter of beer was worked out

mass = volume × density

1.01 kg/L × 1 L

=

1.01 kg

The density comes from FAO/INFOODS Density Database v2.0. Lager 1.005, ale 1.003–1.018, pilsner at 4 °C 1.008.

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 1 liter — 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 beer that means 1 liter weighs 1.01 kg here, and one kilogram of it takes 0.99 liters there.

Related Calculations

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 1 liter of beer? (The answer is: 1.01). 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 1 liter of each substance weighs

SubstanceMassDensity, kg/L
Beer1.01 kg1.01
Cement1.25–1.4 kg1.25–1.4
Coal0.65–1.27 kg0.654–1.266
Cucumbers0.62–0.64 kg0.62–0.64
Diesel0.83 kg0.834
Gasoline0.74 kg0.74
Honey1.42 kg1.42
Juice1.06 kg1.06
LPG0.51 kg0.51
Milk1.03 kg1.03
Mineral spirits0.78 kg0.78
Motor oil0.85 kg0.85
Sand1.65–2 kg1.65–2
Soil1.3–1.5 kg1.3–1.5
Sugar0.72–0.9 kg0.72–0.9
Tomatoes0.55–0.6 kg0.55–0.6
Vegetable oil0.92 kg0.92
Wall primer1 kg1
Water1 kg0.998

FAQ

How many kilograms are in 1 liter of beer?

1 liter of beer weighs 1.01 kg

How do you work out the mass of 1 liter of beer?

Mass equals volume times density. The density of beer is 1.01 kg/L and the volume is 1 liter, which gives 1.01 kg.

How accurate is the density of beer?

The figure comes from FAO/INFOODS Density Database v2.0. Lager 1.005, ale 1.003–1.018, pilsner at 4 °C 1.008. Within the band of 1.003–1.018 kg/L the answer shifts a little, and at household volumes that shift is usually smaller than the error of a kitchen scale.

Is 1 liter of beer heavier or lighter than water?

Beer has a density of 1.01 kg/L against 0.998 for water, so the same 1 liter weighs 1.01 kg instead of 1 kg. This is exactly why the everyday shorthand "a liter is a kilogram" only holds for water.

See Also