Mass per volume density.
Ounces per Cubic foot to Grains per Pint Converter — oz/ft3 to gr/pt
Convert Ounce per Cubic foot (oz/ft3) to Grain per Pint (gr/pt) using the exact conversion factor (1 ounce per cubic foot = 7.310655382 grain per pint). See the formula, worked examples, and conversion table.
Ounces per Cubic foot 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 1.001153961 / 0.1369444884.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Cubic foot to Grains per Pint
Ounce per Cubic foot 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 = ounces per cubic foot × 7.31065538194
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cubic foot equals 1.00115396087 base units, and 1 grain per pint equals 0.136944488362 base units, so dividing one by the other gives the direct ounce per cubic foot-to-grain per pint factor of 7.31065538194.
Simple example
1 oz/ft3 × 7.310655382 = 7.310655382 gr/pt
1 ounce per cubic foot = 7.310655382 grains per pint.
Real-world example
1,000 oz/ft3 × 7.310655382 = 7,310.655382 gr/pt
1,000 ounces per cubic foot = 7,310.655382 grains per pint.
Conversion table
| Ounce per Cubic foot (oz/ft3) | Grain per Pint (gr/pt) |
|---|---|
| 0.1 oz/ft3 | 0.7310655382 gr/pt |
| 1 oz/ft3 | 7.310655382 gr/pt |
| 10 oz/ft3 | 73.10655382 gr/pt |
| 100 oz/ft3 | 731.0655382 gr/pt |
| 1,000 oz/ft3 | 7,310.655382 gr/pt |
| 10,000 oz/ft3 | 73,106.55382 gr/pt |
Reverse conversion: Grain per Pint to Ounce per Cubic foot
7.310655382 gr/pt × 0.1367866419 = 1 oz/ft3
7.310655382 grains per pint = 1 ounces per cubic foot.
ounces per cubic foot = grains per pint × 0.136786641929
For a page dedicated to this direction, see Grain per Pint to Ounce per Cubic foot.
Understanding the Ounce per Cubic foot (oz/ft3)
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 ounce per cubic foot?
1 ounce per cubic foot equals 7.310655382 grains per pint, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cubic foot to grain per pint?
Multiply the ounce per cubic foot value by 7.310655382. The converter above does this instantly to whatever precision you set.
How do I convert grain per pint back to ounce per cubic foot?
Use the reverse factor: 1 grain per pint equals 0.1367866419 ounces per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cubic foot?
Ounce per Cubic foot (oz/ft3) is a unit of density.
What is a grain per pint?
Grain per Pint (gr/pt) is a unit of density.
Is the ounce per cubic foot to grain per pint conversion exact?
Yes. Both ounce per cubic foot and grain per pint are defined by fixed standards rather than physical artifacts, so the factor of 7.310655382 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.