Mass per volume density.
Kilograms per Cubic yard to Grain per Cubic inches Converter — kg/yd3 to gr/in3
Convert Kilogram per Cubic yard (kg/yd3) to Grain per Cubic inch (gr/in3) using the exact conversion factor (1 kilogram per cubic yard = 0.3307689976 grain per cubic inch). See the formula, worked examples, conversion table, and common uses.
Kilograms per Cubic yard to Grain 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 1.307950619 / 3.954272101.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cubic yard to Grain per Cubic inches
Kilogram per Cubic yard and Grain 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. Kilogram per Cubic yard is most often used for can be used to express the density of bulk construction materials such as gravel, soil, or aggregate — in practice, us construction and landscaping references more commonly express this as tons per cubic yard or pounds per cubic foot.
Formula
grain per cubic inches = kilograms per cubic yard × 0.33076899762
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cubic yard equals 1.30795061931 base units, and 1 grain per cubic inch equals 3.95427210146 base units, so dividing one by the other gives the direct kilogram per cubic yard-to-grain per cubic inch factor of 0.33076899762.
Simple example
1 kg/yd3 × 0.3307689976 = 0.3307689976 gr/in3
1 kilogram per cubic yard = 0.3307689976 grain per cubic inches.
Real-world example
1,000 kg/yd3 × 0.3307689976 = 330.7689976 gr/in3
1,000 kilograms per cubic yard = 330.7689976 grain per cubic inches.
Conversion table
| Kilogram per Cubic yard (kg/yd3) | Grain per Cubic inch (gr/in3) |
|---|---|
| 0.1 kg/yd3 | 0.0330768998 gr/in3 |
| 1 kg/yd3 | 0.3307689976 gr/in3 |
| 10 kg/yd3 | 3.307689976 gr/in3 |
| 100 kg/yd3 | 33.07689976 gr/in3 |
| 1,000 kg/yd3 | 330.7689976 gr/in3 |
| 10,000 kg/yd3 | 3,307.689976 gr/in3 |
Reverse conversion: Grain per Cubic inch to Kilogram per Cubic yard
0.3307689976 gr/in3 × 3.023257945 = 0.9999999999 kg/yd3
0.3307689976 grain per cubic inches = 0.9999999999 kilograms per cubic yard.
kilograms per cubic yard = grain per cubic inches × 3.02325794496
For a page dedicated to this direction, see Grain per Cubic inch to Kilogram per Cubic yard.
Understanding the Kilogram per Cubic yard
Kilogram per Cubic yard (kg/yd3) measures density. A mathematically valid way to express bulk material density in kilograms per cubic yard. It is classified as a mixed metric/US customary density unit.
Uses of the Kilogram per Cubic yard today
- Can be used to express the density of bulk construction materials such as gravel, soil, or aggregate — in practice, US construction and landscaping references more commonly express this as tons per cubic yard or pounds per cubic foot
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Kilogram per Cubic yard — sources
- US construction and landscaping material-estimating references — Bulk material weight by volume is typically reported in tons per cubic yard in US construction and landscaping contexts.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grain per cubic inches are in 1 kilogram per cubic yard?
1 kilogram per cubic yard equals 0.3307689976 grain per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cubic yard to grain per cubic inch?
Multiply the kilogram per cubic yard value by 0.3307689976. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic inch back to kilogram per cubic yard?
Use the reverse factor: 1 grain per cubic inch equals 3.023257945 kilograms per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per cubic yard?
Kilogram per Cubic yard (kg/yd3) measures density. A mathematically valid way to express bulk material density in kilograms per cubic yard. It is classified as a mixed metric/US customary density unit.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
Is the kilogram per cubic yard to grain per cubic inch conversion exact?
Yes. Both kilogram per cubic yard and grain per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.3307689976 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.