Mass per volume density.
Grains per Cubic Millimeter to Pounds per Teaspoon Converter — gr/mm3 to lb/tsp
Convert Grain per Cubic Millimeter (gr/mm3) to Pound per Teaspoon (lb/tsp) using the exact conversion factor (1 grain per cubic millimeter = 0.7041316562 pound per teaspoon). See the formula, worked examples, and conversion table.
Grains per Cubic Millimeter to Pounds per Teaspoon 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 / 92026.69618.
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 Pounds per Teaspoon
Grain per Cubic Millimeter and Pound per Teaspoon 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
pounds per teaspoon = grains per cubic millimeter × 0.70413165625
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 pound per teaspoon equals 92026.6961794 base units, so dividing one by the other gives the direct grain per cubic millimeter-to-pound per teaspoon factor of 0.70413165625.
Simple example
1 gr/mm3 × 0.7041316562 = 0.7041316562 lb/tsp
1 grain per cubic millimeter = 0.7041316562 pounds per teaspoon.
Real-world example
1,000 gr/mm3 × 0.7041316562 = 704.1316562 lb/tsp
1,000 grains per cubic millimeter = 704.1316562 pounds per teaspoon.
Conversion table
| Grain per Cubic Millimeter (gr/mm3) | Pound per Teaspoon (lb/tsp) |
|---|---|
| 0.1 gr/mm3 | 0.0704131656 lb/tsp |
| 1 gr/mm3 | 0.7041316562 lb/tsp |
| 10 gr/mm3 | 7.041316562 lb/tsp |
| 100 gr/mm3 | 70.41316562 lb/tsp |
| 1,000 gr/mm3 | 704.1316562 lb/tsp |
| 10,000 gr/mm3 | 7,041.316562 lb/tsp |
Reverse conversion: Pound per Teaspoon to Grain per Cubic Millimeter
0.7041316562 lb/tsp × 1.420188953 = 0.9999999999 gr/mm3
0.7041316562 pounds per teaspoon = 0.9999999999 grains per cubic millimeter.
grains per cubic millimeter = pounds per teaspoon × 1.42018895348
For a page dedicated to this direction, see Pound per Teaspoon to Grain per Cubic Millimeter.
Understanding the Grain per Cubic Millimeter (gr/mm3)
Mass per volume density.
Understanding the Pound per Teaspoon (lb/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per teaspoon are in 1 grain per cubic millimeter?
1 grain per cubic millimeter equals 0.7041316562 pounds per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic millimeter to pound per teaspoon?
Multiply the grain per cubic millimeter value by 0.7041316562. The converter above does this instantly to whatever precision you set.
How do I convert pound per teaspoon back to grain per cubic millimeter?
Use the reverse factor: 1 pound per teaspoon equals 1.420188953 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 pound per teaspoon?
Pound per Teaspoon (lb/tsp) is a unit of density.
Is the grain per cubic millimeter to pound per teaspoon conversion exact?
Yes. Both grain per cubic millimeter and pound per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.7041316562 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.