kg to mL Converter (by Substance)

Quick answer

Convert kilograms to millilitres for milk and 17 other substances, or enter your own density. Because kilograms measure weight and millilitres measure volume, the result depends on the substance: volume = mass ÷ density.

Density used
—
Millilitres
—
Litres
— L
US fluid ounces
— US fl oz

Divide kilograms by density in kg/L, then multiply by 1,000 to get millilitres.

How to use the kg to mL Converter

  1. Substance
  2. Custom density
  3. Kilograms
  4. Every result field is editable: type into Millilitres 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 millilitres and other common units. Every result field is editable, so you can work backwards too.

How to convert kilograms to millilitres

  1. Find the density of the substance (the menu fills it in for you).
  2. Convert the weight to SI units if needed.
  3. Divide mass by density to get volume.
  4. Convert the answer to millilitres.

1 kilogram of common substances in millilitres

Substance Millilitres per 1 kg
Water (4 °C) 1,000
Water (20 °C) 1,001.8032
Water (100 °C) 1,043.4057
Seawater 975.60976
Milk 970.87379
Gasoline (petrol) 1,342.2819
Diesel 1,190.4762
Jet fuel (Jet A) 1,243.7811
Kerosene 1,234.5679
Crude oil (typical) 1,149.4253
Ethanol 1,267.4271
Propane (liquid) 2,028.3976
Olive oil 1,095.2903
Vegetable oil 1,085.7763
Honey 704.22535
Beer 990.09901
Orange juice 956.9378
Latex paint (typical) 769.23077

Densities used

Substance kg/m³ g/mL lb/US gal
Water (4 °C) 1,000 1 8.3454045
Water (20 °C) 998.2 0.9982 8.3303827
Water (100 °C) 958.4 0.9584 7.9982356
Seawater 1,025 1.025 8.5540396
Milk 1,030 1.03 8.5957666
Gasoline (petrol) 745 0.745 6.2173263
Diesel 840 0.84 7.0101397
Jet fuel (Jet A) 804 0.804 6.7097052
Kerosene 810 0.81 6.7597776
Crude oil (typical) 870 0.87 7.2605019
Ethanol 789 0.789 6.5845241
Propane (liquid) 493 0.493 4.1142844
Olive oil 913 0.913 7.6193543
Vegetable oil 921 0.921 7.6861175
Honey 1,420 1.42 11.850474
Beer 1,010 1.01 8.4288585
Orange juice 1,045 1.045 8.7209477
Latex paint (typical) 1,300 1.3 10.849026

Inputs explained

Field What to enter
Substance Choose one: Water (4 °C), Water (20 °C), Water (100 °C), Seawater …
Custom density Units: g/cm³, kg/m³, kg/L, lb/ft³, lb/US gal
Kilograms Units: kg, g, mg, µg, dag, t …

What each result means

  • Millilitres = [Kilograms] ÷ [Density used]
  • Litres = [Kilograms] ÷ [Density used]
  • US fluid ounces = [Kilograms] ÷ [Density used]

Formula

volume = mass ÷ density

Worked example

Inputs — Substance: Milk; Custom density: 1 g/cm³; Kilograms: 0.5 kg.
Results — Density used = 1.03 g/cm³; Millilitres = 485.436893 mL; Litres = 0.485437 L; US fluid ounces = 16.414574 US fl oz.

Frequently asked questions

How many mL is 0.5 kg of milk?

About 485 mL.

How many mL is 1 kg of water?

About 1,000 mL.

Why does the answer change with the ingredient?

Kilograms and millilitres 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 mL Converter use?

volume = mass ÷ density.

Sources

  1. The Engineering ToolBox – Densities of liquids and solids

Cite this calculator

Speedy Calculator. (2026). kg to mL Converter (by Substance). Speedy Calculator. https://speedycalculator.com/calculators/conversion/kg-to-ml/