Mass per volume density.
Ounce per Cubic inches to Grains per Pint Converter — oz/in3 to gr/pt
Convert Ounce per Cubic inch (oz/in3) to Grain per Pint (gr/pt) using the exact conversion factor (1 ounce per cubic inch = 12,632.8125 grain per pint). See the formula, worked examples, and conversion table.
Ounce per Cubic inches 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 1729.994044 / 0.1369444884.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounce per Cubic inches to Grains per Pint
Ounce per Cubic inch 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 = ounce per cubic inches × 12632.8125
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cubic inch equals 1729.99404439 base units, and 1 grain per pint equals 0.136944488362 base units, so dividing one by the other gives the direct ounce per cubic inch-to-grain per pint factor of 12632.8125.
Simple example
1 oz/in3 × 12632.8125 = 12,632.8125 gr/pt
1 ounce per cubic inch = 12,632.8125 grains per pint.
Real-world example
1,000 oz/in3 × 12632.8125 = 12,632,812.5 gr/pt
1,000 ounce per cubic inches = 12,632,812.5 grains per pint.
Conversion table
| Ounce per Cubic inch (oz/in3) | Grain per Pint (gr/pt) |
|---|---|
| 0.1 oz/in3 | 1,263.28125 gr/pt |
| 1 oz/in3 | 12,632.8125 gr/pt |
| 10 oz/in3 | 126,328.125 gr/pt |
| 100 oz/in3 | 1,263,281.25 gr/pt |
| 1,000 oz/in3 | 12,632,812.5 gr/pt |
| 10,000 oz/in3 | 126,328,125 gr/pt |
Reverse conversion: Grain per Pint to Ounce per Cubic inch
1 gr/pt × 0.0000791589363 = 0.0000791589 oz/in3
1 grain per pint = 0.0000791589 ounce per cubic inches.
ounce per cubic inches = grains per pint × 0.0000791589363018
For a page dedicated to this direction, see Grain per Pint to Ounce per Cubic inch.
Understanding the Ounce per Cubic inch (oz/in3)
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 inch?
1 ounce per cubic inch equals 12,632.8125 grains per pint, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cubic inch to grain per pint?
Multiply the ounce per cubic inch value by 12632.8125. The converter above does this instantly to whatever precision you set.
How do I convert grain per pint back to ounce per cubic inch?
Use the reverse factor: 1 grain per pint equals 0.0000791589 ounce per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cubic inch?
Ounce per Cubic inch (oz/in3) 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 inch to grain per pint conversion exact?
Yes. Both ounce per cubic inch and grain per pint are defined by fixed standards rather than physical artifacts, so the factor of 12632.8125 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.