Mass per volume density.
Slugs per Teaspoon to Grains per Cubic Millimeter Converter — slug/tsp to gr/mm3
Convert Slug per Teaspoon (slug/tsp) to Grain per Cubic Millimeter (gr/mm3) using the exact conversion factor (1 slug per teaspoon = 45.69322835 grain per cubic millimeter). See the formula, worked examples, and conversion table.
Slugs 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 2.96087139e+6 / 64798.91.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Teaspoon to Grains per Cubic Millimeter
Slug 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 = slugs per teaspoon × 45.6932283485
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per teaspoon equals 2960871.39136 base units, and 1 grain per cubic millimeter equals 64798.91 base units, so dividing one by the other gives the direct slug per teaspoon-to-grain per cubic millimeter factor of 45.6932283485.
Simple example
1 slug/tsp × 45.69322835 = 45.69322835 gr/mm3
1 slug per teaspoon = 45.69322835 grains per cubic millimeter.
Real-world example
1,000 slug/tsp × 45.69322835 = 45,693.22835 gr/mm3
1,000 slugs per teaspoon = 45,693.22835 grains per cubic millimeter.
Conversion table
| Slug per Teaspoon (slug/tsp) | Grain per Cubic Millimeter (gr/mm3) |
|---|---|
| 0.1 slug/tsp | 4.569322835 gr/mm3 |
| 1 slug/tsp | 45.69322835 gr/mm3 |
| 10 slug/tsp | 456.9322835 gr/mm3 |
| 100 slug/tsp | 4,569.322835 gr/mm3 |
| 1,000 slug/tsp | 45,693.22835 gr/mm3 |
| 10,000 slug/tsp | 456,932.2835 gr/mm3 |
Reverse conversion: Grain per Cubic Millimeter to Slug per Teaspoon
45.69322835 gr/mm3 × 0.02188508092 = 1 slug/tsp
45.69322835 grains per cubic millimeter = 1 slugs per teaspoon.
slugs per teaspoon = grains per cubic millimeter × 0.0218850809221
For a page dedicated to this direction, see Grain per Cubic Millimeter to Slug per Teaspoon.
Understanding the Slug per Teaspoon (slug/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 slug per teaspoon?
1 slug per teaspoon equals 45.69322835 grains per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert slug per teaspoon to grain per cubic millimeter?
Multiply the slug per teaspoon value by 45.69322835. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic millimeter back to slug per teaspoon?
Use the reverse factor: 1 grain per cubic millimeter equals 0.0218850809 slugs per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per teaspoon?
Slug per Teaspoon (slug/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 slug per teaspoon to grain per cubic millimeter conversion exact?
Yes. Both slug per teaspoon and grain per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 45.69322835 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.