A cubic inch is the volume of a one-inch cube.
Cubic inches to Cubic Meters Converter — in3 to m3
Convert Cubic inch (in3) to Cubic Meter (m3) using the exact conversion factor (1 cubic inch = 0.0000163871 cubic meter). See the formula, worked examples, conversion table, history, and common uses.
Cubic inches to Cubic Meters 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.
Cubic metric volume unit.
Result = input x 1.6387064e-5 / 1.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic inches to Cubic Meters
Cubic inch and Cubic Meter 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 cubic metric volume unit.
Formula
cubic meters = cubic inches × 0.000016387064
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 meter equals 1 base unit, so dividing one by the other gives the direct cubic inch-to-cubic meter factor of 0.000016387064.
Simple example
1 in3 × 0.000016387064 = 0.0000163871 m3
1 cubic inch = 0.0000163871 cubic meters.
Real-world example
10 in3 × 0.000016387064 = 0.0001638706 m3
10 cubic inches = 0.0001638706 cubic meters.
Conversion table
| Cubic inch (in3) | Cubic Meter (m3) |
|---|---|
| 1 in3 | 0.0000163871 m3 |
| 5 in3 | 0.0000819353 m3 |
| 10 in3 | 0.0001638706 m3 |
| 25 in3 | 0.0004096766 m3 |
| 50 in3 | 0.0008193532 m3 |
| 100 in3 | 0.0016387064 m3 |
Reverse conversion: Cubic Meter to Cubic inch
0.0000163871 m3 × 61023.74409 = 1.000002197 in3
0.0000163871 cubic meters = 1.000002197 cubic inches.
cubic inches = cubic meters × 61023.7440947
For a page dedicated to this direction, see Cubic Meter to Cubic inch.
Understanding the Cubic inch (in3)
A cubic inch is the volume of a one-inch cube.
Understanding the Cubic Meter
Cubic Meter (m3) measures volume. The cubic meter is the SI derived unit of volume: the volume of a cube with 1-meter sides. It is classified as a SI derived unit.
Where it's used: Standard volume unit worldwide for large-scale measurement (construction, shipping, utilities)
Uses of the Cubic Meter today
- Concrete, excavation, and construction material volume
- Natural gas and water utility billing in many countries
- Shipping container and freight volume measurement
History of the Cubic Meter
Like the square meter, the cubic meter is a coherent SI derived unit that follows automatically from the meter rather than having an independent origin story of its own.
Historical origin. Cubic Meter was not the invention of a single named person; it developed through the process described above.
Cubic Meter — sources
- BIPM SI Brochure — Coherent derived units — Defines the cubic meter as the SI unit of volume.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic meters are in 1 cubic inch?
1 cubic inch equals 0.0000163871 cubic meters, using the exact defined conversion factor rather than an estimate.
How do I convert cubic inch to cubic meter?
Multiply the cubic inch value by 0.000016387064. The converter above does this instantly to whatever precision you set.
How do I convert cubic meter back to cubic inch?
Use the reverse factor: 1 cubic meter equals 61,023.74409 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 meter?
Cubic Meter (m3) measures volume. The cubic meter is the SI derived unit of volume: the volume of a cube with 1-meter sides. It is classified as a SI derived unit.
Is the cubic inch to cubic meter conversion exact?
Yes. Both cubic inch and cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 0.000016387064 used above is exact to as many digits as you choose to display.