Density Converter
Convert between density units
rate：1 g/L = 0.001 g/cm³
Results in all units
21 g/L| Unit | Symbol | Value |
|---|---|---|
| Metric | ||
| Kilograms/m³ | kg/m³ | 21 |
| Grams/cm³ | g/cm³ | 0.021 |
| Grams/mL | g/mL | 0.021 |
| Kilograms/L | kg/L | 0.021 |
| Tons/m³ | t/m³ | 0.021 |
| Grams/L | g/L | 21 |
| Milligrams/L | mg/L | 21,000 |
| Imperial / US | ||
| Pounds/ft³ | lb/ft³ | 1.310987 |
| Pounds/in³ | lb/in³ | 0.000759 |
| Ounces/in³ | oz/in³ | 0.012139 |
| Pounds/gallon (US) | lb/gal (US) | 0.175253 |
About Density Conversion
21 Grams/L equals 0.021 Grams/cm³. The conversion rate is 1 g/L = 0.001 g/cm³. You can switch to any other unit of this category above and see the result instantly.
This converter supports 11 units in total, including Kilograms/m³, Grams/cm³, Grams/mL, Kilograms/L, and covers metric, imperial and Chinese traditional systems.
Density conversion appears in materials science, naval architecture, and even cocktail making. In ship design, changes in seawater density directly affect draught and load calculations. In chemical engineering, liquid density determines pressure distribution in tanks.
All values follow internationally accepted definitions and are rounded to the decimals you choose. The calculation runs entirely in your browser, so nothing is uploaded or stored on a server.
Frequently Asked Questions
How much is 1 Grams/L in Grams/cm³?
1 g/L = 0.001 g/cm³. Multiply your value by this rate to convert manually.
How do I convert Grams/L to Grams/cm³?
Enter the value in the input box, pick the target unit and read the result right away. As a reference, 1 g/L = 0.001 g/cm³.
Which units does this converter support?
It supports Kilograms/m³, Grams/cm³, Grams/mL, Kilograms/L, Tons/m³ and many more. Use the search box above to filter units quickly.
How accurate are the conversion results?
Conversions follow internationally accepted definitions. Results can show up to 12 decimals, and scientific notation is available for extremely large or tiny values.
History & Background
Archimedes discovered the law of buoyancy while bathing, marking the beginning of precise density research. Water was historically used as the reference for density—1 cubic centimeter of pure water at 4°C has a mass of exactly 1 gram.
Conversion Details
Density conversion is based on kg/m³. Water is about 1,000 kg/m³ (1 g/cm³).
Common conversions: 1 g/cm³ = 1,000 kg/m³ = 1 kg/L, 1 lb/ft³ ≈ 16.02 kg/m³.