Gram per Liter (g/L)
The gram per litre (g/L) is exactly 1 kg/m³. It is also used for concentrations of dissolved substances.
Symbol: g/L
Quantity: density (mass per unit volume) and mass concentration
SI relation: 1 g/L = 1 kg/m³ (exact)
Derivation: 1 g/L = 10⁻³ kg ÷ 10⁻³ m³ = 1 kg/m³
Exact: yes, by definition
Same quantity as kilogram per cubic meter (kg/m³) : the factor between them is exactly 1.
Typical uses
- Gas densities (CO₂ ≈ 1.98 g/L at 0 °C)
- Salinity and solution concentrations (seawater ≈ 35 g/L salt)
- Blood and lab chemistry
Convert grams per liter to other units
| Conversion | 1 g/L equals | Reverse |
|---|---|---|
| gram per liter to kilogram per cubic meter | 1 kg/m³ | kilogram per cubic meter to gram per liter |
| gram per liter to gram per cubic centimeter | 0.001 g/cm³ | gram per cubic centimeter to gram per liter |
| gram per liter to milligram per liter | 1000 mg/L | milligram per liter to gram per liter |
| gram per liter to pound per cubic foot | 0.06242796058 lb/ft³ | pound per cubic foot to gram per liter |
| gram per liter to pound per gallon | 0.008345404452 lb/gal | pound per gallon to gram per liter |
| gram per liter to kilogram per liter | 0.001 kg/L | kilogram per liter to gram per liter |
| gram per liter to pound per cubic inch | 0.000036127292 lb/in³ | pound per cubic inch to gram per liter |
Open the Density Converter to convert any value between all units.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 (litre).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Gram per Liter (g/L). Retrieved October 17, 2026, from https://scientificconverters.com/units/gram-per-liter/
IEEE
Scientific Converters, "Gram per Liter (g/L)," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/units/gram-per-liter/