Mass per volume density.
Grams per Fluid ounce to Grains per Cubic Millimeter Converter — g/fl oz to gr/mm3
Convert Gram per Fluid ounce (g/fl oz) to Grain per Cubic Millimeter (gr/mm3) using the exact conversion factor (1 gram per fluid ounce = 0.0005218301 grain per cubic millimeter). See the formula, worked examples, and conversion table.
Grams per Fluid ounce to Grains per Cubic Millimeter 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 33.8140227 / 64798.91.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Fluid ounce to Grains per Cubic Millimeter
Gram per Fluid ounce and Grain per Cubic Millimeter 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
grains per cubic millimeter = grams per fluid ounce × 0.000521830115689
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per fluid ounce equals 33.8140227018 base units, and 1 grain per cubic millimeter equals 64798.91 base units, so dividing one by the other gives the direct gram per fluid ounce-to-grain per cubic millimeter factor of 0.000521830115689.
Simple example
1 g/fl oz × 0.0005218301157 = 0.0005218301 gr/mm3
1 gram per fluid ounce = 0.0005218301 grains per cubic millimeter.
Real-world example
1,000 g/fl oz × 0.0005218301157 = 0.5218301157 gr/mm3
1,000 grams per fluid ounce = 0.5218301157 grains per cubic millimeter.
Conversion table
| Gram per Fluid ounce (g/fl oz) | Grain per Cubic Millimeter (gr/mm3) |
|---|---|
| 0.1 g/fl oz | 0.000052183 gr/mm3 |
| 1 g/fl oz | 0.0005218301 gr/mm3 |
| 10 g/fl oz | 0.0052183012 gr/mm3 |
| 100 g/fl oz | 0.0521830116 gr/mm3 |
| 1,000 g/fl oz | 0.5218301157 gr/mm3 |
| 10,000 g/fl oz | 5.218301157 gr/mm3 |
Reverse conversion: Grain per Cubic Millimeter to Gram per Fluid ounce
0.0005218301 gr/mm3 × 1916.332481 = 0.9999999699 g/fl oz
0.0005218301 grains per cubic millimeter = 0.9999999699 grams per fluid ounce.
grams per fluid ounce = grains per cubic millimeter × 1916.3324805
For a page dedicated to this direction, see Grain per Cubic Millimeter to Gram per Fluid ounce.
Understanding the Gram per Fluid ounce (g/fl oz)
Mass per volume density.
Understanding the Grain per Cubic Millimeter (gr/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cubic millimeter are in 1 gram per fluid ounce?
1 gram per fluid ounce equals 0.0005218301 grains per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per fluid ounce to grain per cubic millimeter?
Multiply the gram per fluid ounce value by 0.0005218301157. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic millimeter back to gram per fluid ounce?
Use the reverse factor: 1 grain per cubic millimeter equals 1,916.332481 grams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per fluid ounce?
Gram per Fluid ounce (g/fl oz) is a unit of density.
What is a grain per cubic millimeter?
Grain per Cubic Millimeter (gr/mm3) is a unit of density.
Is the gram per fluid ounce to grain per cubic millimeter conversion exact?
Yes. Both gram per fluid ounce and grain per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.0005218301157 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.