g/cm³ to lb/ft³ Converter
Convert grams per cubic centimetre to pounds per cubic foot — the metric-to-imperial density conversion. Results update as you type; exact factors shown.
One gram per cubic centimetre is 62.428 pound per cubic foot — see the exact factor, not a rounded rule of thumb.
How the g/cm³ to lb/ft³ 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/cm³ | 31.214 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 0.79 g/cm³ | 49.3181 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 0.917 g/cm³ | 57.2464 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 1 g/cm³ | 62.428 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 1.025 g/cm³ | 63.9887 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 2.4 g/cm³ | 149.8271 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 2.7 g/cm³ | 168.5555 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 7.85 g/cm³ | 490.0595 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 8.96 g/cm³ | 559.3545 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 11.34 g/cm³ | 707.9331 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 13.534 g/cm³ | 844.9 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
| 19.3 g/cm³ | 1,204.8596 lb/ft³ | gram per cubic centimetre to pound per cubic foot |
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
How many lb/ft³ is 1 g/cm³?
62.428 lb/ft³ — that is water.
What is steel in lb/ft³?
About 490 lb/ft³, from 7.85 g/cm³.
What is concrete?
Around 2.4 g/cm³, which is 150 lb/ft³.
Why convert?
Because material data sheets use whichever unit the market expects, and mixed-source projects need both.
What is the densest common metal?
Osmium at 22.59 g/cm³, or 1,410 lb/ft³.
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.