Mass concentration.
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
Chemistry Converter
Convert concentration, molarity, amount, and laboratory scientific units by compatible family.
Context values
Some unit families need one extra value for a physically accurate result.
Mass concentration.
Result = input x 0.2641720524 / 1.
Mass Concentration units are compatible.
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 mass concentration — how much of a substance is dissolved or dispersed in a given volume — a core calculation for preparing lab solutions, checking water quality against a regulatory limit, or formulating a pharmaceutical dose. Both are mass concentration 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
100 g/gal × 0.2641720524 = 26.41720524 kg/m3
100 grams per gallon = 26.41720524 kilograms per cubic meter.
Conversion table
| Gram per Gallon (g/gal) | Kilogram per Cubic Meter (kg/m3) |
|---|---|
| 0.001 g/gal | 0.0002641721 kg/m3 |
| 0.01 g/gal | 0.0026417205 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 |
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 concentration.
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 chemistry.
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.