How many kilograms are in 10 liters of milk?

"Liters to Kilograms" Calculator
How many kilograms in
L

How many kilograms are in 10 liters of milk?

Answer

10 liters of milk weighs
10.3 kg

The density of milk is 1.03 kg/L (cow milk at 15.6 °C; whole milk 1.030–1.031). The source gives a band of 1.02–1.05 kg/L.

How the mass of 10 liters of milk was worked out

mass = volume × density

1.03 kg/L × 10 L

=

10.3 kg

The density comes from FAO/INFOODS Density Database v2.0. Cow milk at 15.6 °C; whole milk 1.030–1.031.

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 10 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 milk that means 10 liters weighs 10.3 kg here, and one kilogram of it takes 0.97 liters there.

Related Calculations

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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 10 liters of milk? (The answer is: 10.3). 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 10 liters of each substance weighs

SubstanceMassDensity, kg/L
Beer10.1 kg1.01
Cement12.5–14 kg1.25–1.4
Coal6.5–12.7 kg0.654–1.266
Cucumbers6.2–6.4 kg0.62–0.64
Diesel8.34 kg0.834
Gasoline7.4 kg0.74
Honey14.2 kg1.42
Juice10.6 kg1.06
LPG5.1 kg0.51
Milk10.3 kg1.03
Mineral spirits7.8 kg0.78
Motor oil8.5 kg0.85
Sand16.5–20 kg1.65–2
Soil13–15 kg1.3–1.5
Sugar7.2–9 kg0.72–0.9
Tomatoes5.5–6 kg0.55–0.6
Vegetable oil9.2 kg0.92
Wall primer10 kg1
Water9.98 kg0.998

FAQ

How many kilograms are in 10 liters of milk?

10 liters of milk weighs 10.3 kg

How do you work out the mass of 10 liters of milk?

Mass equals volume times density. The density of milk is 1.03 kg/L and the volume is 10 liters, which gives 10.3 kg.

How accurate is the density of milk?

The figure comes from FAO/INFOODS Density Database v2.0. Cow milk at 15.6 °C; whole milk 1.030–1.031. Within the band of 1.02–1.05 kg/L the answer shifts a little, and at household volumes that shift is usually smaller than the error of a kitchen scale.

Is 10 liters of milk heavier or lighter than water?

Milk has a density of 1.03 kg/L against 0.998 for water, so the same 10 liters weighs 10.3 kg instead of 9.98 kg. This is exactly why the everyday shorthand "a liter is a kilogram" only holds for water.

See Also