# kg to Liters Converter (by Substance)

URL: https://speedycalculator.com/calculators/conversion/kg-to-liter/
Last updated: 2026-10-25

> Convert kilograms to litres for water (20 °c) and 17 other substances, or enter your own density. Because kilograms measure weight and litres measure volume, the result depends on the substance: volume = mass ÷ density.

## Inputs

- Substance
- Custom density (g/cm³, kg/m³, kg/L, lb/ft³, lb/US gal)
- Kilograms (kg, g, mg, µg, dag, t, lb, oz, st, US ton, UK ton, gr, dr, ozt, lb t, ct, tola, amu (Da), M⊕)

## Results

- Density used
- Litres
- Millilitres
- US gallons

## Formula

```
volume = mass ÷ density
```

## Explanation

One kilogram of water is about one litre, by the original definition of the kilogram. Lighter liquids like gasoline take more space per kilogram; heavier ones like honey take less.

### How to use the kg to Liters Converter

- **Substance**
- **Custom density**
- **Kilograms**
- Every result field is editable: type into **Litres** or any other result and **Kilograms** plus every other field update to match.

Results update as you type, and every field accepts the units shown in its menu.

### How it works

The calculator converts your weight to SI units, looks up the density of the selected substance in kg/m³ and divides. The result is then shown in litres and other common units. Every result field is editable, so you can work backwards too.

### How to convert kilograms to litres

- Find the density of the substance (the menu fills it in for you).
- Convert the weight to SI units if needed.
- Divide mass by density to get volume.
- Convert the answer to litres.

### 1 kilogram of common substances in litres

SubstanceLitres per 1 kgWater (4 °C)1Water (20 °C)1.0018032Water (100 °C)1.0434057Seawater0.97560976Milk0.97087379Gasoline (petrol)1.3422819Diesel1.1904762Jet fuel (Jet A)1.2437811Kerosene1.2345679Crude oil (typical)1.1494253Ethanol1.2674271Propane (liquid)2.0283976Olive oil1.0952903Vegetable oil1.0857763Honey0.70422535Beer0.99009901Orange juice0.9569378Latex paint (typical)0.76923077

### Densities used

Substancekg/m³g/mLlb/US galWater (4 °C)1,00018.3454045Water (20 °C)998.20.99828.3303827Water (100 °C)958.40.95847.9982356Seawater1,0251.0258.5540396Milk1,0301.038.5957666Gasoline (petrol)7450.7456.2173263Diesel8400.847.0101397Jet fuel (Jet A)8040.8046.7097052Kerosene8100.816.7597776Crude oil (typical)8700.877.2605019Ethanol7890.7896.5845241Propane (liquid)4930.4934.1142844Olive oil9130.9137.6193543Vegetable oil9210.9217.6861175Honey1,4201.4211.850474Beer1,0101.018.4288585Orange juice1,0451.0458.7209477Latex paint (typical)1,3001.310.849026

### Inputs explained

FieldWhat to enterSubstanceChoose one: Water (4 °C), Water (20 °C), Water (100 °C), Seawater …Custom densityUnits: g/cm³, kg/m³, kg/L, lb/ft³, lb/US galKilogramsUnits: kg, g, mg, µg, dag, t …

### What each result means

- **Litres** = [Kilograms] ÷ [Density used]
- **Millilitres** = [Kilograms] ÷ [Density used]
- **US gallons** = [Kilograms] ÷ [Density used]

## Worked example

Inputs — Substance: Water (20 °C); Custom density: 1 g/cm³; Kilograms: 1 kg.

Results — Density used = 0.9982 g/cm³; **Litres = 1.001803 L**; Millilitres = 1,001.803246 mL; US gallons = 0.264648 US gal.

## FAQ

**How many litres is 1 kg of water?**
About 1 L.

**How many litres is 1 kg of diesel?**
About 1.19 L.

**Why does the answer change with the ingredient?**
Kilograms and litres measure different things (weight and volume), so the conversion depends on how dense the material is.

**What if my ingredient is not listed?**
Choose “Custom density” and type its density; the label or a quick weigh-and-measure test will give it.

**What formula does the kg to Liters Converter use?**
volume = mass ÷ density.


## Sources

- [The Engineering ToolBox – Densities of liquids and solids](https://www.engineeringtoolbox.com/density-solids-d_1265.html)