Mass per volume density.
Ounces per Teaspoon to Grains per Cubic Millimeter Converter — oz/tsp to gr/mm3
Convert Ounce per Teaspoon (oz/tsp) to Grain per Cubic Millimeter (gr/mm3) using the exact conversion factor (1 ounce per teaspoon = 0.0887618096 grain per cubic millimeter). See the formula, worked examples, and conversion table.
Ounces per Teaspoon 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 5751.668511 / 64798.91.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Teaspoon to Grains per Cubic Millimeter
Ounce per Teaspoon 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 = ounces per teaspoon × 0.0887618095923
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per teaspoon equals 5751.66851121 base units, and 1 grain per cubic millimeter equals 64798.91 base units, so dividing one by the other gives the direct ounce per teaspoon-to-grain per cubic millimeter factor of 0.0887618095923.
Simple example
1 oz/tsp × 0.08876180959 = 0.0887618096 gr/mm3
1 ounce per teaspoon = 0.0887618096 grains per cubic millimeter.
Real-world example
1,000 oz/tsp × 0.08876180959 = 88.76180959 gr/mm3
1,000 ounces per teaspoon = 88.76180959 grains per cubic millimeter.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Grain per Cubic Millimeter (gr/mm3) |
|---|---|
| 0.1 oz/tsp | 0.008876181 gr/mm3 |
| 1 oz/tsp | 0.0887618096 gr/mm3 |
| 10 oz/tsp | 0.8876180959 gr/mm3 |
| 100 oz/tsp | 8.876180959 gr/mm3 |
| 1,000 oz/tsp | 88.76180959 gr/mm3 |
| 10,000 oz/tsp | 887.6180959 gr/mm3 |
Reverse conversion: Grain per Cubic Millimeter to Ounce per Teaspoon
0.0887618096 gr/mm3 × 11.2661065 = 1 oz/tsp
0.0887618096 grains per cubic millimeter = 1 ounces per teaspoon.
ounces per teaspoon = grains per cubic millimeter × 11.2661065
For a page dedicated to this direction, see Grain per Cubic Millimeter to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
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 ounce per teaspoon?
1 ounce per teaspoon equals 0.0887618096 grains per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to grain per cubic millimeter?
Multiply the ounce per teaspoon value by 0.08876180959. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic millimeter back to ounce per teaspoon?
Use the reverse factor: 1 grain per cubic millimeter equals 11.2661065 ounces per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per teaspoon?
Ounce per Teaspoon (oz/tsp) 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 ounce per teaspoon to grain per cubic millimeter conversion exact?
Yes. Both ounce per teaspoon and grain per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.08876180959 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.