Mass per volume density.
Grains per Cubic foot to Ounce per Cubic inches Converter — gr/ft3 to oz/in3
Convert Grain per Cubic foot (gr/ft3) to Ounce per Cubic inch (oz/in3) using the exact conversion factor (1 grain per cubic foot = 0.0000013228 ounce per cubic inch). See the formula, worked examples, and conversion table.
Grains per Cubic foot to Ounce per Cubic inches 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 0.002288351911 / 1729.994044.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Cubic foot to Ounce per Cubic inches
Grain per Cubic foot and Ounce per Cubic inch 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
ounce per cubic inches = grains per cubic foot × 0.00000132275132275
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic foot equals 0.00228835191057 base units, and 1 ounce per cubic inch equals 1729.99404439 base units, so dividing one by the other gives the direct grain per cubic foot-to-ounce per cubic inch factor of 0.00000132275132275.
Simple example
1 gr/ft3 × 0.000001322751323 = 0.0000013228 oz/in3
1 grain per cubic foot = 0.0000013228 ounce per cubic inches.
Real-world example
1,000 gr/ft3 × 0.000001322751323 = 0.0013227513 oz/in3
1,000 grains per cubic foot = 0.0013227513 ounce per cubic inches.
Conversion table
| Grain per Cubic foot (gr/ft3) | Ounce per Cubic inch (oz/in3) |
|---|---|
| 0.1 gr/ft3 | 1.322751e-7 oz/in3 |
| 1 gr/ft3 | 0.0000013228 oz/in3 |
| 10 gr/ft3 | 0.0000132275 oz/in3 |
| 100 gr/ft3 | 0.0001322751 oz/in3 |
| 1,000 gr/ft3 | 0.0013227513 oz/in3 |
| 10,000 gr/ft3 | 0.0132275132 oz/in3 |
Reverse conversion: Ounce per Cubic inch to Grain per Cubic foot
0.0000013228 oz/in3 × 756000 = 1.0000368 gr/ft3
0.0000013228 ounce per cubic inches = 1.0000368 grains per cubic foot.
grains per cubic foot = ounce per cubic inches × 756000
For a page dedicated to this direction, see Ounce per Cubic inch to Grain per Cubic foot.
Understanding the Grain per Cubic foot (gr/ft3)
Mass per volume density.
Understanding the Ounce per Cubic inch (oz/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounce per cubic inches are in 1 grain per cubic foot?
1 grain per cubic foot equals 0.0000013228 ounce per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic foot to ounce per cubic inch?
Multiply the grain per cubic foot value by 0.000001322751323. The converter above does this instantly to whatever precision you set.
How do I convert ounce per cubic inch back to grain per cubic foot?
Use the reverse factor: 1 ounce per cubic inch equals 756,000 grains per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic foot?
Grain per Cubic foot (gr/ft3) is a unit of density.
What is a ounce per cubic inch?
Ounce per Cubic inch (oz/in3) is a unit of density.
Is the grain per cubic foot to ounce per cubic inch conversion exact?
Yes. Both grain per cubic foot and ounce per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.000001322751323 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.