g/mL to kg/m³ Converter
Convert grams per millilitre to kilograms per cubic metre — multiply by a thousand. Results update as you type; exact factors shown.
One gram per millilitre is 1,000 kilogram per cubic metre — see the exact factor, not a rounded rule of thumb.
How the g/ml to kg/m³ converter works
Density converts through kg/m³. 1 g/cm³ = 1 kg/L = 1,000 kg/m³ (water at 4 °C). 1 lb/ft³ = 16.0185 kg/m³ and 1 lb/US gal = 119.83 kg/m³. Concrete is about 2,400 kg/m³, steel 7,850 kg/m³, petrol about 740 kg/m³.
Australia is fully metric under the National Measurement Act 1960; imperial units appear only in trade with the US and in older documents.
Common density conversions
| From | To | Units |
|---|---|---|
| 0.5 g/mL | 500 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 0.79 g/mL | 790 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 0.917 g/mL | 917 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 1 g/mL | 1,000 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 1.025 g/mL | 1,025 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 1.05 g/mL | 1,050 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 1.2 g/mL | 1,200 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 1.5 g/mL | 1,500 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 2 g/mL | 2,000 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 2.7 g/mL | 2,700 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 5 g/mL | 5,000 kg/m³ | gram per millilitre to kilogram per cubic metre |
| 13.534 g/mL | 13,534 kg/m³ | gram per millilitre to kilogram per cubic metre |
Units in this converter and their exact factors
| Unit | Symbol | One unit in kilogram per cubic metres |
|---|---|---|
| kilogram per cubic metre | kg/m³ | 1 kilogram per cubic metre |
| gram per cubic centimetre | g/cm³ | 1,000 kilogram per cubic metre |
| gram per millilitre | g/mL | 1,000 kilogram per cubic metre |
| kilogram per litre | kg/L | 1,000 kilogram per cubic metre |
| pound per cubic foot | lb/ft³ | 16.018463374 kilogram per cubic metre |
| pound per cubic inch | lb/in³ | 27,679.9047102 kilogram per cubic metre |
| pound per US gallon | lb/US gal | 119.826427317 kilogram per cubic metre |
| ounce per cubic inch | oz/in³ | 1,729.99404 kilogram per cubic metre |
| tonne per cubic metre | t/m³ | 1,000 kilogram per cubic metre |
FAQFrequently asked questions about density conversion
What is 1 g/mL in kg/m³?
1,000 kg/m³.
Is g/mL the same as g/cm³?
Yes — a millilitre is exactly one cubic centimetre.
What is ethanol's density?
0.789 g/mL.
What is seawater?
About 1.025 g/mL, slightly denser than fresh water.
Why does chemistry use g/mL?
Because laboratory volumes are in millilitres and the numbers land conveniently near 1.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Measurement Institute (NMI) — Australia's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.