Mass per volume density.
Grams per Gallon to Kilograms per Cubic Meter Converter — g/gal to kg/m3
Convert Gram per Gallon (g/gal) to Kilogram per Cubic Meter (kg/m3) using the exact conversion factor (1 gram per gallon = 0.2641720524 kilogram per cubic meter). See the formula, worked examples, conversion table, and common uses.
Grams per Gallon to Kilograms per Cubic Meter 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 0.2641720524 / 1.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Kilograms per Cubic Meter
Gram per Gallon and Kilogram per Cubic Meter 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. Both are mass per volume density units.
Formula
kilograms per cubic meter = grams per gallon × 0.264172052358
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per gallon equals 0.264172052358 base units, and 1 kilogram per cubic meter equals 1 base unit, so dividing one by the other gives the direct gram per gallon-to-kilogram per cubic meter factor of 0.264172052358.
Simple example
1 g/gal × 0.2641720524 = 0.2641720524 kg/m3
1 gram per gallon = 0.2641720524 kilograms per cubic meter.
Real-world example
1,000 g/gal × 0.2641720524 = 264.1720524 kg/m3
1,000 grams per gallon = 264.1720524 kilograms per cubic meter.
Conversion table
| Gram per Gallon (g/gal) | Kilogram per Cubic Meter (kg/m3) |
|---|---|
| 0.1 g/gal | 0.0264172052 kg/m3 |
| 1 g/gal | 0.2641720524 kg/m3 |
| 10 g/gal | 2.641720524 kg/m3 |
| 100 g/gal | 26.41720524 kg/m3 |
| 1,000 g/gal | 264.1720524 kg/m3 |
| 10,000 g/gal | 2,641.720524 kg/m3 |
Reverse conversion: Kilogram per Cubic Meter to Gram per Gallon
0.2641720524 kg/m3 × 3.785411784 = 1 g/gal
0.2641720524 kilograms per cubic meter = 1 grams per gallon.
grams per gallon = kilograms per cubic meter × 3.785411784
For a page dedicated to this direction, see Kilogram per Cubic Meter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass per volume density.
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
Kilogram per Cubic Meter — sources
- BIPM SI Brochure, 9th edition — Kilogram per cubic meter as the SI coherent derived unit for density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic meter are in 1 gram per gallon?
1 gram per gallon equals 0.2641720524 kilograms per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to kilogram per cubic meter?
Multiply the gram per gallon value by 0.2641720524. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic meter back to gram per gallon?
Use the reverse factor: 1 kilogram per cubic meter equals 3.785411784 grams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of density.
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.
Is the gram per gallon to kilogram per cubic meter conversion exact?
Yes. Both gram per gallon and kilogram per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 0.2641720524 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.