A cubic inch is the volume of a one-inch cube.
Cubic inches to Cubic yards Converter — in3 to yd3
Convert Cubic inch (in3) to Cubic yard (yd3) using the exact conversion factor (1 cubic inch = 0.0000214335 cubic yard). See the formula, worked examples, conversion table, history, and common uses.
Cubic inches to Cubic yards converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
A cubic yard is exactly 0.764554857984 cubic meters.
Result = input x 1.6387064e-5 / 0.764554858.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inches to Cubic yards
Cubic inch and Cubic yard appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Specifically: A cubic inch is the volume of a one-inch cube, and a cubic yard is exactly 0.764554857984 cubic meters.
Formula
cubic yards = cubic inches × 0.0000214334705075
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic inch equals 0.000016387064 base units, and 1 cubic yard equals 0.764554857984 base units, so dividing one by the other gives the direct cubic inch-to-cubic yard factor of 0.0000214334705075.
Simple example
1 in3 × 0.00002143347051 = 0.0000214335 yd3
1 cubic inch = 0.0000214335 cubic yards.
Real-world example
10 in3 × 0.00002143347051 = 0.0002143347 yd3
10 cubic inches = 0.0002143347 cubic yards.
Conversion table
| Cubic inch (in3) | Cubic yard (yd3) |
|---|---|
| 1 in3 | 0.0000214335 yd3 |
| 5 in3 | 0.0001071674 yd3 |
| 10 in3 | 0.0002143347 yd3 |
| 25 in3 | 0.0005358368 yd3 |
| 50 in3 | 0.0010716735 yd3 |
| 100 in3 | 0.0021433471 yd3 |
Reverse conversion: Cubic yard to Cubic inch
0.0000214335 yd3 × 46656 = 1.000001376 in3
0.0000214335 cubic yards = 1.000001376 cubic inches.
cubic inches = cubic yards × 46656
For a page dedicated to this direction, see Cubic yard to Cubic inch.
Understanding the Cubic inch (in3)
A cubic inch is the volume of a one-inch cube.
Understanding the Cubic yard
Cubic yard (yd3) measures volume. A cubic yard is exactly 0.764554857984 cubic meters, derived from the international yard. It is classified as a US/imperial customary unit.
Where it's used: United States (construction material estimating)
Uses of the Cubic yard today
- US construction material estimating (concrete, mulch, topsoil, gravel — commonly sold by the cubic yard)
- Landscaping and excavation volume
History of the Cubic yard
The cubic yard follows from the standardized yard (0.9144 m exactly since 1959) and remains the standard US unit for bulk landscaping and construction materials.
Historical origin. Cubic yard was not the invention of a single named person; it developed through the process described above.
Cubic yard — sources
- NIST — International yard and pound (1959) — Basis for the modern yard and its derived volume unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic yards are in 1 cubic inch?
1 cubic inch equals 0.0000214335 cubic yards, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch to cubic yard?
Multiply the cubic inch value by 0.00002143347051. The converter above does this instantly to whatever precision you set.
How do I convert cubic yard back to cubic inch?
Use the reverse factor: 1 cubic yard equals 46,656 cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic inch?
Cubic inch (in3) is a unit of volume.
What is a cubic yard?
Cubic yard (yd3) measures volume. A cubic yard is exactly 0.764554857984 cubic meters, derived from the international yard. It is classified as a US/imperial customary unit.
Is the cubic inch to cubic yard conversion exact?
Yes. A cubic yard is exactly 0.764554857984 cubic meters, derived from the international yard. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.