Mass per volume density.
Grams per Cup to Grains per Pint Converter — g/cup to gr/pt
Convert Gram per Cup (g/cup) to Grain per Pint (gr/pt) using the exact conversion factor (1 gram per cup = 30.86471671 grain per pint). See the formula, worked examples, and conversion table.
Grams per Cup to Grains per Pint 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 4.226752838 / 0.1369444884.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cup to Grains per Pint
Gram per Cup and Grain per Pint 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 pint = grams per cup × 30.8647167059
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cup equals 4.22675283773 base units, and 1 grain per pint equals 0.136944488362 base units, so dividing one by the other gives the direct gram per cup-to-grain per pint factor of 30.8647167059.
Simple example
1 g/cup × 30.86471671 = 30.86471671 gr/pt
1 gram per cup = 30.86471671 grains per pint.
Real-world example
1,000 g/cup × 30.86471671 = 30,864.71671 gr/pt
1,000 grams per cup = 30,864.71671 grains per pint.
Conversion table
| Gram per Cup (g/cup) | Grain per Pint (gr/pt) |
|---|---|
| 0.1 g/cup | 3.086471671 gr/pt |
| 1 g/cup | 30.86471671 gr/pt |
| 10 g/cup | 308.6471671 gr/pt |
| 100 g/cup | 3,086.471671 gr/pt |
| 1,000 g/cup | 30,864.71671 gr/pt |
| 10,000 g/cup | 308,647.1671 gr/pt |
Reverse conversion: Grain per Pint to Gram per Cup
30.86471671 gr/pt × 0.032399455 = 1 g/cup
30.86471671 grains per pint = 1 grams per cup.
grams per cup = grains per pint × 0.032399455
For a page dedicated to this direction, see Grain per Pint to Gram per Cup.
Understanding the Gram per Cup (g/cup)
Mass per volume density.
Understanding the Grain per Pint (gr/pt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per pint are in 1 gram per cup?
1 gram per cup equals 30.86471671 grains per pint, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cup to grain per pint?
Multiply the gram per cup value by 30.86471671. The converter above does this instantly to whatever precision you set.
How do I convert grain per pint back to gram per cup?
Use the reverse factor: 1 grain per pint equals 0.032399455 grams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cup?
Gram per Cup (g/cup) is a unit of density.
What is a grain per pint?
Grain per Pint (gr/pt) is a unit of density.
Is the gram per cup to grain per pint conversion exact?
Yes. Both gram per cup and grain per pint are defined by fixed standards rather than physical artifacts, so the factor of 30.86471671 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.