Mass per volume density.
Kilograms per Cubic Meter to Pounds per Gallon Converter — kg/m3 to lb/gal
Convert Kilogram per Cubic Meter (kg/m3) to Pound per Gallon (lb/gal) using the exact conversion factor (1 kilogram per cubic meter = 0.0083454045 pound per gallon). See the formula, worked examples, conversion table, unit comparison, and common uses.
Kilograms per Cubic Meter to Pounds per Gallon 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 1 / 119.8264273.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cubic Meter to Pounds per Gallon
Kilogram per Cubic Meter and Pound per Gallon 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. Kilogram per Cubic Meter is typically associated with universal — the official SI unit for density, used throughout physics and engineering worldwide, while Pound per Gallon is typically associated with united States (paint, fuel, and industrial liquid density specifications).
Formula
pounds per gallon = kilograms per cubic meter × 0.00834540445202
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cubic meter equals 1 base unit, and 1 pound per gallon equals 119.826427317 base units, so dividing one by the other gives the direct kilogram per cubic meter-to-pound per gallon factor of 0.00834540445202.
Simple example
1 kg/m3 × 0.008345404452 = 0.0083454045 lb/gal
1 kilogram per cubic meter = 0.0083454045 pounds per gallon.
Real-world example
1,000 kg/m3 × 0.008345404452 = 8.345404452 lb/gal
1,000 kilograms per cubic meter = 8.345404452 pounds per gallon.
Conversion table
| Kilogram per Cubic Meter (kg/m3) | Pound per Gallon (lb/gal) |
|---|---|
| 0.1 kg/m3 | 0.0008345404 lb/gal |
| 1 kg/m3 | 0.0083454045 lb/gal |
| 10 kg/m3 | 0.0834540445 lb/gal |
| 100 kg/m3 | 0.8345404452 lb/gal |
| 1,000 kg/m3 | 8.345404452 lb/gal |
| 10,000 kg/m3 | 83.45404452 lb/gal |
Reverse conversion: Pound per Gallon to Kilogram per Cubic Meter
0.0083454045 lb/gal × 119.8264273 = 1.000000006 kg/m3
0.0083454045 pounds per gallon = 1.000000006 kilograms per cubic meter.
kilograms per cubic meter = pounds per gallon × 119.826427317
For a page dedicated to this direction, see Pound per Gallon to Kilogram per Cubic Meter.
Kilogram per Cubic Meter vs. Pound per Gallon
| Aspect | Kilogram per Cubic Meter | Pound per Gallon |
|---|---|---|
| Family | SI coherent derived unit | US customary density unit |
| Typical use | Physics and engineering reference density values | US paint and coatings density specifications |
| Where it's used | Universal — the official SI unit for density, used throughout physics and engineering worldwide | United States (paint, fuel, and industrial liquid density specifications) |
Understanding the Kilogram per Cubic Meter
Kilogram per Cubic Meter (kg/m3) measures density. The SI coherent unit for density — the form all other metric density/concentration units in this catalog are ultimately defined relative to. It is classified as a SI coherent derived unit.
Where it's used: Universal — the official SI unit for density, used throughout physics and engineering worldwide
kg/m³ vs. g/L vs. kg/L. All three are exactly related: 1 kg/m³ = 1 g/L, and 1,000 kg/m³ = 1 kg/L. kg/m³ is the formal SI-coherent form; g/L and kg/L are more commonly used in everyday and laboratory contexts.
Uses of the Kilogram per Cubic Meter today
- Physics and engineering reference density values
- Material property tables in scientific literature
- Fluid dynamics and structural engineering calculations
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
Kilogram per Cubic Meter — sources
- BIPM SI Brochure, 9th edition — Kilogram per cubic meter as the SI coherent derived unit for density.
Pound per Gallon — sources
- NIST Handbook 44 — General tables of units including US customary density measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per gallon are in 1 kilogram per cubic meter?
1 kilogram per cubic meter equals 0.0083454045 pounds per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cubic meter to pound per gallon?
Multiply the kilogram per cubic meter value by 0.008345404452. The converter above does this instantly to whatever precision you set.
How do I convert pound per gallon back to kilogram per cubic meter?
Use the reverse factor: 1 pound per gallon equals 119.8264273 kilograms per cubic meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per cubic meter?
Kilogram per Cubic Meter (kg/m3) measures density. The SI coherent unit for density — the form all other metric density/concentration units in this catalog are ultimately defined relative to. It is classified as a SI coherent derived unit.
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.
Is the kilogram per cubic meter to pound per gallon conversion exact?
Yes. Both kilogram per cubic meter and pound per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.008345404452 used above is exact to as many digits as you choose to display.
What is the difference between kg/m³ vs. g/l vs. kg/l?
All three are exactly related: 1 kg/m³ = 1 g/L, and 1,000 kg/m³ = 1 kg/L. kg/m³ is the formal SI-coherent form; g/L and kg/L are more commonly used in everyday and laboratory contexts.
Where is the kilogram per cubic meter still used today?
Universal — the official SI unit for density, used throughout physics and engineering worldwide