Mass per volume density.
Troy ounce per Cubic inches to Grains per Cubic Millimeter Converter — oz t/in3 to gr/mm3
Convert Troy ounce per Cubic inch (oz t/in3) to Grain per Cubic Millimeter (gr/mm3) using the exact conversion factor (1 troy ounce per cubic inch = 0.0292913972 grain per cubic millimeter). See the formula, worked examples, and conversion table.
Troy ounce per Cubic inches 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 1898.050609 / 64798.91.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounce per Cubic inches to Grains per Cubic Millimeter
Troy ounce per Cubic inch 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 = troy ounce per cubic inches × 0.0292913971655
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce per cubic inch equals 1898.0506087 base units, and 1 grain per cubic millimeter equals 64798.91 base units, so dividing one by the other gives the direct troy ounce per cubic inch-to-grain per cubic millimeter factor of 0.0292913971655.
Simple example
1 oz t/in3 × 0.02929139717 = 0.0292913972 gr/mm3
1 troy ounce per cubic inch = 0.0292913972 grains per cubic millimeter.
Real-world example
1,000 oz t/in3 × 0.02929139717 = 29.29139717 gr/mm3
1,000 troy ounce per cubic inches = 29.29139717 grains per cubic millimeter.
Conversion table
| Troy ounce per Cubic inch (oz t/in3) | Grain per Cubic Millimeter (gr/mm3) |
|---|---|
| 0.1 oz t/in3 | 0.0029291397 gr/mm3 |
| 1 oz t/in3 | 0.0292913972 gr/mm3 |
| 10 oz t/in3 | 0.2929139717 gr/mm3 |
| 100 oz t/in3 | 2.929139717 gr/mm3 |
| 1,000 oz t/in3 | 29.29139717 gr/mm3 |
| 10,000 oz t/in3 | 292.9139717 gr/mm3 |
Reverse conversion: Grain per Cubic Millimeter to Troy ounce per Cubic inch
0.0292913972 gr/mm3 × 34.13971667 = 1.000000001 oz t/in3
0.0292913972 grains per cubic millimeter = 1.000000001 troy ounce per cubic inches.
troy ounce per cubic inches = grains per cubic millimeter × 34.1397166667
For a page dedicated to this direction, see Grain per Cubic Millimeter to Troy ounce per Cubic inch.
Understanding the Troy ounce per Cubic inch (oz t/in3)
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 troy ounce per cubic inch?
1 troy ounce per cubic inch equals 0.0292913972 grains per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per cubic inch to grain per cubic millimeter?
Multiply the troy ounce per cubic inch value by 0.02929139717. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic millimeter back to troy ounce per cubic inch?
Use the reverse factor: 1 grain per cubic millimeter equals 34.13971667 troy ounce per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce per cubic inch?
Troy ounce per Cubic inch (oz t/in3) 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 troy ounce per cubic inch to grain per cubic millimeter conversion exact?
Yes. Both troy ounce per cubic inch and grain per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.02929139717 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.