Liter to Kg

Welcome to liter to kg, our website made for helping you with the liters to kilograms conversion.

Throughout this website we use the American spelling variant liter, as opposed to litre, the international writing.

Along the same lines we use kilogram, instead of kilogramme.

The liter is a unit of volume; the unit symbol is l or L, but you sometimes come across the abbreviation ltr.

In turn, the kilogram is the International System of Unit’s base unit of mass; the symbol is kg.


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Liters to Kilograms

The link between the quantity volume (V) and the property mass (m) is called density.

The volumetric mass density D is defined as the quotient m / V, which, for a given substance, varies depending on temperature and pressure conditions.

On top of that, different materials generally have different densities.

Because liters to kilograms is a volume to mass conversion, the substance-specific density connects the mass and volume, in function of pressure and temperature, as can be seen in the formula below.

How to Convert Liter to Kg

We employ the formula m = D × V.

For water at sea level at 39.2 Fahrenheit D = 1, so m = V.

In this case one liter of water equals one kilogram.

Here you can find all about kg to liters.

Liter to Kg Formula

The liter to kg formula is: [kg] = D × [L].

For cooking water, the approximation kg ~ L most likely is good enough.

But what about milk, sugar, flour etc?

In this case, you substitute D in the ltr to kg formula with the particular density, or make use of our converters above.

For our converter, the value for D and the corresponding unit is needed.

Frequent conversions include, for example: Ahead you can find the related FAQs.

Frequently Asked Questions

Can we convert liter to kg?

Yes, [kg] = Density × [L].

Does a litre weigh 1 kg?

Yes – For water as a rough approximation

How heavy is a 1 liter?

It depends on the density of the material

How many kg is 1 litre of milk?

1 L milk ≈ 1.04 kg (Supposed D = 1.04 g/ml)

How many kg is 1 litre of oil?

1 L oil ≈ 0.88 kg (Assumed D = 0.88 g/ml)

Is 1 kg more than 1 litre?

1 kg can be more, less or equal to 1 litre depending on the density of the ingredient

Is 1 liter oil equal to 1 kg?

No, 1 liter cooking oil equals approximately 0.88 kg

In our summary that follows we also explain how to search for specific calculations.


You have reached the final part of how to convert liters to kilograms.

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Further Information:– Article written by Mark, last updated on October 14th, 2023