Mass per volume density.
Drams per Teaspoon to Grain per Cubic inches Converter — dr/tsp to gr/in3
Convert Dram per Teaspoon (dr/tsp) to Grain per Cubic inch (gr/in3) using the exact conversion factor (1 dram per teaspoon = 90.90909091 grain per cubic inch). See the formula, worked examples, and conversion table.
Drams per Teaspoon to Grain 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 359.479282 / 3.954272101.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Teaspoon to Grain per Cubic inches
Dram per Teaspoon and Grain 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
grain per cubic inches = drams per teaspoon × 90.9090909091
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per teaspoon equals 359.479281951 base units, and 1 grain per cubic inch equals 3.95427210146 base units, so dividing one by the other gives the direct dram per teaspoon-to-grain per cubic inch factor of 90.9090909091.
Simple example
1 dr/tsp × 90.90909091 = 90.90909091 gr/in3
1 dram per teaspoon = 90.90909091 grain per cubic inches.
Real-world example
1,000 dr/tsp × 90.90909091 = 90,909.09091 gr/in3
1,000 drams per teaspoon = 90,909.09091 grain per cubic inches.
Conversion table
| Dram per Teaspoon (dr/tsp) | Grain per Cubic inch (gr/in3) |
|---|---|
| 0.1 dr/tsp | 9.090909091 gr/in3 |
| 1 dr/tsp | 90.90909091 gr/in3 |
| 10 dr/tsp | 909.0909091 gr/in3 |
| 100 dr/tsp | 9,090.909091 gr/in3 |
| 1,000 dr/tsp | 90,909.09091 gr/in3 |
| 10,000 dr/tsp | 909,090.9091 gr/in3 |
Reverse conversion: Grain per Cubic inch to Dram per Teaspoon
90.90909091 gr/in3 × 0.011 = 1 dr/tsp
90.90909091 grain per cubic inches = 1 drams per teaspoon.
drams per teaspoon = grain per cubic inches × 0.011
For a page dedicated to this direction, see Grain per Cubic inch to Dram per Teaspoon.
Understanding the Dram per Teaspoon (dr/tsp)
Mass per volume density.
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grain per cubic inches are in 1 dram per teaspoon?
1 dram per teaspoon equals 90.90909091 grain per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert dram per teaspoon to grain per cubic inch?
Multiply the dram per teaspoon value by 90.90909091. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic inch back to dram per teaspoon?
Use the reverse factor: 1 grain per cubic inch equals 0.011 drams per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per teaspoon?
Dram per Teaspoon (dr/tsp) is a unit of density.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
Is the dram per teaspoon to grain per cubic inch conversion exact?
Yes. Both dram per teaspoon and grain per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 90.90909091 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.