Mass per volume density.
Kilograms per Cup to Grains per Teaspoon Converter — kg/cup to gr/tsp
Convert Kilogram per Cup (kg/cup) to Grain per Teaspoon (gr/tsp) using the exact conversion factor (1 kilogram per cup = 321.5074657 grain per teaspoon). See the formula, worked examples, and conversion table.
Kilograms per Cup to Grains 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 4226.752838 / 13.14667088.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cup to Grains per Teaspoon
Kilogram per Cup and Grain 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
grains per teaspoon = kilograms per cup × 321.507465686
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cup equals 4226.75283773 base units, and 1 grain per teaspoon equals 13.1466708828 base units, so dividing one by the other gives the direct kilogram per cup-to-grain per teaspoon factor of 321.507465686.
Simple example
1 kg/cup × 321.5074657 = 321.5074657 gr/tsp
1 kilogram per cup = 321.5074657 grains per teaspoon.
Real-world example
1,000 kg/cup × 321.5074657 = 321,507.4657 gr/tsp
1,000 kilograms per cup = 321,507.4657 grains per teaspoon.
Conversion table
| Kilogram per Cup (kg/cup) | Grain per Teaspoon (gr/tsp) |
|---|---|
| 0.1 kg/cup | 32.15074657 gr/tsp |
| 1 kg/cup | 321.5074657 gr/tsp |
| 10 kg/cup | 3,215.074657 gr/tsp |
| 100 kg/cup | 32,150.74657 gr/tsp |
| 1,000 kg/cup | 321,507.4657 gr/tsp |
| 10,000 kg/cup | 3,215,074.657 gr/tsp |
Reverse conversion: Grain per Teaspoon to Kilogram per Cup
321.5074657 gr/tsp × 0.00311034768 = 1 kg/cup
321.5074657 grains per teaspoon = 1 kilograms per cup.
kilograms per cup = grains per teaspoon × 0.00311034768
For a page dedicated to this direction, see Grain per Teaspoon to Kilogram per Cup.
Understanding the Kilogram per Cup (kg/cup)
Mass per volume density.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per teaspoon are in 1 kilogram per cup?
1 kilogram per cup equals 321.5074657 grains per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cup to grain per teaspoon?
Multiply the kilogram per cup value by 321.5074657. The converter above does this instantly to whatever precision you set.
How do I convert grain per teaspoon back to kilogram per cup?
Use the reverse factor: 1 grain per teaspoon equals 0.0031103477 kilograms per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per cup?
Kilogram per Cup (kg/cup) is a unit of density.
What is a grain per teaspoon?
Grain per Teaspoon (gr/tsp) is a unit of density.
Is the kilogram per cup to grain per teaspoon conversion exact?
Yes. Both kilogram per cup and grain per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 321.5074657 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.