Mass per volume density.
Grains per Cubic Millimeter to Troy ounce per Cubic inches Converter — gr/mm3 to oz t/in3
Convert Grain per Cubic Millimeter (gr/mm3) to Troy ounce per Cubic inch (oz t/in3) using the exact conversion factor (1 grain per cubic millimeter = 34.13971667 troy ounce per cubic inch). See the formula, worked examples, and conversion table.
Grains per Cubic Millimeter to Troy ounce per Cubic inches 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 64798.91 / 1898.050609.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Cubic Millimeter to Troy ounce per Cubic inches
Grain per Cubic Millimeter and Troy ounce per Cubic inch 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
troy ounce per cubic inches = grains per cubic millimeter × 34.1397166667
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic millimeter equals 64798.91 base units, and 1 troy ounce per cubic inch equals 1898.0506087 base units, so dividing one by the other gives the direct grain per cubic millimeter-to-troy ounce per cubic inch factor of 34.1397166667.
Simple example
1 gr/mm3 × 34.13971667 = 34.13971667 oz t/in3
1 grain per cubic millimeter = 34.13971667 troy ounce per cubic inches.
Real-world example
1,000 gr/mm3 × 34.13971667 = 34,139.71667 oz t/in3
1,000 grains per cubic millimeter = 34,139.71667 troy ounce per cubic inches.
Conversion table
| Grain per Cubic Millimeter (gr/mm3) | Troy ounce per Cubic inch (oz t/in3) |
|---|---|
| 0.1 gr/mm3 | 3.413971667 oz t/in3 |
| 1 gr/mm3 | 34.13971667 oz t/in3 |
| 10 gr/mm3 | 341.3971667 oz t/in3 |
| 100 gr/mm3 | 3,413.971667 oz t/in3 |
| 1,000 gr/mm3 | 34,139.71667 oz t/in3 |
| 10,000 gr/mm3 | 341,397.1667 oz t/in3 |
Reverse conversion: Troy ounce per Cubic inch to Grain per Cubic Millimeter
34.13971667 oz t/in3 × 0.02929139717 = 1 gr/mm3
34.13971667 troy ounce per cubic inches = 1 grains per cubic millimeter.
grains per cubic millimeter = troy ounce per cubic inches × 0.0292913971655
For a page dedicated to this direction, see Troy ounce per Cubic inch to Grain per Cubic Millimeter.
Understanding the Grain per Cubic Millimeter (gr/mm3)
Mass per volume density.
Understanding the Troy ounce per Cubic inch (oz t/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounce per cubic inches are in 1 grain per cubic millimeter?
1 grain per cubic millimeter equals 34.13971667 troy ounce per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic millimeter to troy ounce per cubic inch?
Multiply the grain per cubic millimeter value by 34.13971667. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per cubic inch back to grain per cubic millimeter?
Use the reverse factor: 1 troy ounce per cubic inch equals 0.0292913972 grains per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic millimeter?
Grain per Cubic Millimeter (gr/mm3) is a unit of density.
What is a troy ounce per cubic inch?
Troy ounce per Cubic inch (oz t/in3) is a unit of density.
Is the grain per cubic millimeter to troy ounce per cubic inch conversion exact?
Yes. Both grain per cubic millimeter and troy ounce per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 34.13971667 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.