Mass per volume density.
Grams per Gallon to Kilograms per Cubic Centimeter Converter — g/gal to kg/cm3
Convert Gram per Gallon (g/gal) to Kilogram per Cubic Centimeter (kg/cm3) using the exact conversion factor (1 gram per gallon = 2.641721e-7 kilogram per cubic centimeter). See the formula, worked examples, and conversion table.
Grams per Gallon to Kilograms per Cubic Centimeter 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 / 1000000.
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 Centimeter
Gram per Gallon and Kilogram per Cubic Centimeter 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 centimeter = grams per gallon × 2.641721e-7
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 centimeter equals 1000000 base units, so dividing one by the other gives the direct gram per gallon-to-kilogram per cubic centimeter factor of 2.641721e-7.
Simple example
1 g/gal × 2.641721e-7 = 2.641721e-7 kg/cm3
1 gram per gallon = 2.641721e-7 kilograms per cubic centimeter.
Real-world example
1,000 g/gal × 2.641721e-7 = 0.0002641721 kg/cm3
1,000 grams per gallon = 0.0002641721 kilograms per cubic centimeter.
Conversion table
| Gram per Gallon (g/gal) | Kilogram per Cubic Centimeter (kg/cm3) |
|---|---|
| 0.1 g/gal | 2.641721e-8 kg/cm3 |
| 1 g/gal | 2.641721e-7 kg/cm3 |
| 10 g/gal | 0.0000026417 kg/cm3 |
| 100 g/gal | 0.0000264172 kg/cm3 |
| 1,000 g/gal | 0.0002641721 kg/cm3 |
| 10,000 g/gal | 0.0026417205 kg/cm3 |
Reverse conversion: Kilogram per Cubic Centimeter to Gram per Gallon
2.641721e-7 kg/cm3 × 3785411.784 = 1.00000018 g/gal
2.641721e-7 kilograms per cubic centimeter = 1.00000018 grams per gallon.
grams per gallon = kilograms per cubic centimeter × 3785411.784
For a page dedicated to this direction, see Kilogram per Cubic Centimeter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass per volume density.
Understanding the Kilogram per Cubic Centimeter (kg/cm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic centimeter are in 1 gram per gallon?
1 gram per gallon equals 2.641721e-7 kilograms per cubic centimeter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to kilogram per cubic centimeter?
Multiply the gram per gallon value by 2.641721e-7. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic centimeter back to gram per gallon?
Use the reverse factor: 1 kilogram per cubic centimeter equals 3,785,411.784 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 centimeter?
Kilogram per Cubic Centimeter (kg/cm3) is a unit of density.
Is the gram per gallon to kilogram per cubic centimeter conversion exact?
Yes. Both gram per gallon and kilogram per cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 2.641721e-7 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.