Mass per volume density.
Grains per Cup to Pounds per Teaspoon Converter — gr/cup to lb/tsp
Convert Grain per Cup (gr/cup) to Pound per Teaspoon (lb/tsp) using the exact conversion factor (1 grain per cup = 0.0000029762 pound per teaspoon). See the formula, worked examples, and conversion table.
Grains per Cup 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 0.2738889767 / 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 Cup to Pounds per Teaspoon
Grain per Cup 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 cup × 0.00000297619047619
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cup equals 0.273888976724 base units, and 1 pound per teaspoon equals 92026.6961794 base units, so dividing one by the other gives the direct grain per cup-to-pound per teaspoon factor of 0.00000297619047619.
Simple example
1 gr/cup × 0.000002976190476 = 0.0000029762 lb/tsp
1 grain per cup = 0.0000029762 pounds per teaspoon.
Real-world example
1,000 gr/cup × 0.000002976190476 = 0.0029761905 lb/tsp
1,000 grains per cup = 0.0029761905 pounds per teaspoon.
Conversion table
| Grain per Cup (gr/cup) | Pound per Teaspoon (lb/tsp) |
|---|---|
| 0.1 gr/cup | 2.97619e-7 lb/tsp |
| 1 gr/cup | 0.0000029762 lb/tsp |
| 10 gr/cup | 0.0000297619 lb/tsp |
| 100 gr/cup | 0.000297619 lb/tsp |
| 1,000 gr/cup | 0.0029761905 lb/tsp |
| 10,000 gr/cup | 0.0297619048 lb/tsp |
Reverse conversion: Pound per Teaspoon to Grain per Cup
0.0000029762 lb/tsp × 336000 = 1.0000032 gr/cup
0.0000029762 pounds per teaspoon = 1.0000032 grains per cup.
grains per cup = pounds per teaspoon × 336000
For a page dedicated to this direction, see Pound per Teaspoon to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
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 cup?
1 grain per cup equals 0.0000029762 pounds per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to pound per teaspoon?
Multiply the grain per cup value by 0.000002976190476. The converter above does this instantly to whatever precision you set.
How do I convert pound per teaspoon back to grain per cup?
Use the reverse factor: 1 pound per teaspoon equals 336,000 grains per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cup?
Grain per Cup (gr/cup) 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 cup to pound per teaspoon conversion exact?
Yes. Both grain per cup and pound per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.000002976190476 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.