Mass per volume density.
Pounds per Gallon to Grams per Liter Converter — lb/gal to g/L
Convert Pound per Gallon (lb/gal) to Gram per Liter (g/L) using the exact conversion factor (1 pound per gallon = 119.8264273 gram per liter). See the formula, worked examples, conversion table, unit comparison, and common uses.
Pounds per Gallon to Grams per Liter converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 119.8264273 / 1.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Gallon to Grams per Liter
Pound per Gallon and Gram per Liter both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Pound per Gallon is typically associated with united States (paint, fuel, and industrial liquid density specifications), while Gram per Liter is typically associated with standard unit for water-quality and laboratory concentration reporting worldwide.
Formula
grams per liter = pounds per gallon × 119.826427317
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per gallon equals 119.826427317 base units, and 1 gram per liter equals 1 base unit, so dividing one by the other gives the direct pound per gallon-to-gram per liter factor of 119.826427317.
Simple example
1 lb/gal × 119.8264273 = 119.8264273 g/L
1 pound per gallon = 119.8264273 grams per liter.
Real-world example
1,000 lb/gal × 119.8264273 = 119,826.4273 g/L
1,000 pounds per gallon = 119,826.4273 grams per liter.
Conversion table
| Pound per Gallon (lb/gal) | Gram per Liter (g/L) |
|---|---|
| 0.1 lb/gal | 11.98264273 g/L |
| 1 lb/gal | 119.8264273 g/L |
| 10 lb/gal | 1,198.264273 g/L |
| 100 lb/gal | 11,982.64273 g/L |
| 1,000 lb/gal | 119,826.4273 g/L |
| 10,000 lb/gal | 1,198,264.273 g/L |
Reverse conversion: Gram per Liter to Pound per Gallon
119.8264273 g/L × 0.008345404452 = 0.9999999999 lb/gal
119.8264273 grams per liter = 0.9999999999 pounds per gallon.
pounds per gallon = grams per liter × 0.00834540445202
For a page dedicated to this direction, see Gram per Liter to Pound per Gallon.
Pound per Gallon vs. Gram per Liter
| Aspect | Pound per Gallon | Gram per Liter |
|---|---|---|
| Family | US customary density unit | metric derived concentration unit |
| Typical use | US paint and coatings density specifications | Water-quality and environmental testing standards |
| Where it's used | United States (paint, fuel, and industrial liquid density specifications) | Standard unit for water-quality and laboratory concentration reporting worldwide |
Understanding the Pound per Gallon
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
Where it's used: United States (paint, fuel, and industrial liquid density specifications)
lb/gal vs. lb/ft³. Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Uses of the Pound per Gallon today
- US paint and coatings density specifications
- US fuel and petroleum liquid density specs
- Industrial liquid handling and shipping weight calculations
Understanding the Gram per Liter
Gram per Liter (g/L) measures mass concentration. One gram of a substance dissolved or dispersed per liter of total solution or mixture volume. It is classified as a metric derived concentration unit.
Where it's used: Standard unit for water-quality and laboratory concentration reporting worldwide
Uses of the Gram per Liter today
- Water-quality and environmental testing standards
- Laboratory solution preparation
- Beverage and food-industry concentration specifications
Pound per Gallon — sources
- NIST Handbook 44 — General tables of units including US customary density measures.
Gram per Liter — sources
- BIPM SI Brochure — Gram and litre as accepted units used to express mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grams per liter are in 1 pound per gallon?
1 pound per gallon equals 119.8264273 grams per liter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per gallon to gram per liter?
Multiply the pound per gallon value by 119.8264273. The converter above does this instantly to whatever precision you set.
How do I convert gram per liter back to pound per gallon?
Use the reverse factor: 1 gram per liter equals 0.0083454045 pounds per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per gallon?
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
What is a gram per liter?
Gram per Liter (g/L) measures mass concentration. One gram of a substance dissolved or dispersed per liter of total solution or mixture volume. It is classified as a metric derived concentration unit.
Is the pound per gallon to gram per liter conversion exact?
Yes. Both pound per gallon and gram per liter are defined by fixed standards rather than physical artifacts, so the factor of 119.8264273 used above is exact to as many digits as you choose to display.
What is the difference between lb/gal vs. lb/ft³?
Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Where is the pound per gallon still used today?
United States (paint, fuel, and industrial liquid density specifications)