Mass per volume density.
Grain per Cubic inches to Pounds per Cubic yard Converter — gr/in3 to lb/yd3
Convert Grain per Cubic inch (gr/in3) to Pound per Cubic yard (lb/yd3) using the exact conversion factor (1 grain per cubic inch = 6.665142857 pound per cubic yard). See the formula, worked examples, and conversion table.
Grain per Cubic inches to Pounds per Cubic yard 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 3.954272101 / 0.5932764213.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grain per Cubic inches to Pounds per Cubic yard
Grain per Cubic inch and Pound per Cubic yard 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
pounds per cubic yard = grain per cubic inches × 6.66514285714
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic inch equals 3.95427210146 base units, and 1 pound per cubic yard equals 0.593276421258 base units, so dividing one by the other gives the direct grain per cubic inch-to-pound per cubic yard factor of 6.66514285714.
Simple example
1 gr/in3 × 6.665142857 = 6.665142857 lb/yd3
1 grain per cubic inch = 6.665142857 pounds per cubic yard.
Real-world example
1,000 gr/in3 × 6.665142857 = 6,665.142857 lb/yd3
1,000 grain per cubic inches = 6,665.142857 pounds per cubic yard.
Conversion table
| Grain per Cubic inch (gr/in3) | Pound per Cubic yard (lb/yd3) |
|---|---|
| 0.1 gr/in3 | 0.6665142857 lb/yd3 |
| 1 gr/in3 | 6.665142857 lb/yd3 |
| 10 gr/in3 | 66.65142857 lb/yd3 |
| 100 gr/in3 | 666.5142857 lb/yd3 |
| 1,000 gr/in3 | 6,665.142857 lb/yd3 |
| 10,000 gr/in3 | 66,651.42857 lb/yd3 |
Reverse conversion: Pound per Cubic yard to Grain per Cubic inch
6.665142857 lb/yd3 × 0.1500342936 = 1 gr/in3
6.665142857 pounds per cubic yard = 1 grain per cubic inches.
grain per cubic inches = pounds per cubic yard × 0.150034293553
For a page dedicated to this direction, see Pound per Cubic yard to Grain per Cubic inch.
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Understanding the Pound per Cubic yard (lb/yd3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cubic yard are in 1 grain per cubic inch?
1 grain per cubic inch equals 6.665142857 pounds per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic inch to pound per cubic yard?
Multiply the grain per cubic inch value by 6.665142857. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic yard back to grain per cubic inch?
Use the reverse factor: 1 pound per cubic yard equals 0.1500342936 grain per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
What is a pound per cubic yard?
Pound per Cubic yard (lb/yd3) is a unit of density.
Is the grain per cubic inch to pound per cubic yard conversion exact?
Yes. Both grain per cubic inch and pound per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 6.665142857 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.