Mass per volume density.
Grains per Teaspoon to Micrograms per Cubic Millimeter Converter — gr/tsp to ug/mm3
Convert Grain per Teaspoon (gr/tsp) to Microgram per Cubic Millimeter (ug/mm3) using the exact conversion factor (1 grain per teaspoon = 13.14667088 microgram per cubic millimeter). See the formula, worked examples, and conversion table.
Grains per Teaspoon to Micrograms 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 13.14667088 / 1.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Teaspoon to Micrograms per Cubic Millimeter
Grain per Teaspoon and Microgram 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
micrograms per cubic millimeter = grains per teaspoon × 13.1466708828
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per teaspoon equals 13.1466708828 base units, and 1 microgram per cubic millimeter equals 1 base unit, so dividing one by the other gives the direct grain per teaspoon-to-microgram per cubic millimeter factor of 13.1466708828.
Simple example
1 gr/tsp × 13.14667088 = 13.14667088 ug/mm3
1 grain per teaspoon = 13.14667088 micrograms per cubic millimeter.
Real-world example
1,000 gr/tsp × 13.14667088 = 13,146.67088 ug/mm3
1,000 grains per teaspoon = 13,146.67088 micrograms per cubic millimeter.
Conversion table
| Grain per Teaspoon (gr/tsp) | Microgram per Cubic Millimeter (ug/mm3) |
|---|---|
| 0.1 gr/tsp | 1.314667088 ug/mm3 |
| 1 gr/tsp | 13.14667088 ug/mm3 |
| 10 gr/tsp | 131.4667088 ug/mm3 |
| 100 gr/tsp | 1,314.667088 ug/mm3 |
| 1,000 gr/tsp | 13,146.67088 ug/mm3 |
| 10,000 gr/tsp | 131,466.7088 ug/mm3 |
Reverse conversion: Microgram per Cubic Millimeter to Grain per Teaspoon
13.14667088 ug/mm3 × 0.07606488433 = 0.9999999998 gr/tsp
13.14667088 micrograms per cubic millimeter = 0.9999999998 grains per teaspoon.
grains per teaspoon = micrograms per cubic millimeter × 0.0760648843283
For a page dedicated to this direction, see Microgram per Cubic Millimeter to Grain per Teaspoon.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Understanding the Microgram per Cubic Millimeter (ug/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per cubic millimeter are in 1 grain per teaspoon?
1 grain per teaspoon equals 13.14667088 micrograms per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert grain per teaspoon to microgram per cubic millimeter?
Multiply the grain per teaspoon value by 13.14667088. The converter above does this instantly to whatever precision you set.
How do I convert microgram per cubic millimeter back to grain per teaspoon?
Use the reverse factor: 1 microgram per cubic millimeter equals 0.0760648843 grains per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per teaspoon?
Grain per Teaspoon (gr/tsp) is a unit of density.
What is a microgram per cubic millimeter?
Microgram per Cubic Millimeter (ug/mm3) is a unit of density.
Is the grain per teaspoon to microgram per cubic millimeter conversion exact?
Yes. Both grain per teaspoon and microgram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 13.14667088 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.