Mass per volume density.
Grains per Cup to Ounces per Teaspoon Converter — gr/cup to oz/tsp
Convert Grain per Cup (gr/cup) to Ounce per Teaspoon (oz/tsp) using the exact conversion factor (1 grain per cup = 0.000047619 ounce per teaspoon). See the formula, worked examples, and conversion table.
Grains per Cup to Ounces 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 / 5751.668511.
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 Ounces per Teaspoon
Grain per Cup and Ounce 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
ounces per teaspoon = grains per cup × 0.000047619047619
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 ounce per teaspoon equals 5751.66851121 base units, so dividing one by the other gives the direct grain per cup-to-ounce per teaspoon factor of 0.000047619047619.
Simple example
1 gr/cup × 0.00004761904762 = 0.000047619 oz/tsp
1 grain per cup = 0.000047619 ounces per teaspoon.
Real-world example
1,000 gr/cup × 0.00004761904762 = 0.0476190476 oz/tsp
1,000 grains per cup = 0.0476190476 ounces per teaspoon.
Conversion table
| Grain per Cup (gr/cup) | Ounce per Teaspoon (oz/tsp) |
|---|---|
| 0.1 gr/cup | 0.0000047619 oz/tsp |
| 1 gr/cup | 0.000047619 oz/tsp |
| 10 gr/cup | 0.0004761905 oz/tsp |
| 100 gr/cup | 0.0047619048 oz/tsp |
| 1,000 gr/cup | 0.0476190476 oz/tsp |
| 10,000 gr/cup | 0.4761904762 oz/tsp |
Reverse conversion: Ounce per Teaspoon to Grain per Cup
0.000047619 oz/tsp × 21000 = 0.999999 gr/cup
0.000047619 ounces per teaspoon = 0.999999 grains per cup.
grains per cup = ounces per teaspoon × 21000
For a page dedicated to this direction, see Ounce per Teaspoon to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per teaspoon are in 1 grain per cup?
1 grain per cup equals 0.000047619 ounces per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to ounce per teaspoon?
Multiply the grain per cup value by 0.00004761904762. The converter above does this instantly to whatever precision you set.
How do I convert ounce per teaspoon back to grain per cup?
Use the reverse factor: 1 ounce per teaspoon equals 21,000 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 ounce per teaspoon?
Ounce per Teaspoon (oz/tsp) is a unit of density.
Is the grain per cup to ounce per teaspoon conversion exact?
Yes. Both grain per cup and ounce per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.00004761904762 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.