Convert Cubic Inch to Cubic Meter
Convert cubic inches to cubic meters instantly. 1 cubic inch = 1.638706e-5 cubic meter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Cubic Meter to Cubic Inch converter for the reverse conversion.
Units explained
Cubic Inch
A cubic inch is the volume of a cube one inch on a side (16.387 mL).
Derived by cubing the international inch (25.4 mm).
Used for engine displacement and small-part volumes.
1959 yard agreement.
Cubic Meter
The cubic meter is the SI derived unit of volume: the volume of a cube one meter on each edge. It is the anchor for all volume conversions.
Defined from the meter, the SI base unit of length, fixed by the speed of light since 1983.
The standard scientific and industrial unit of volume worldwide; used for water, gas, concrete and freight.
SI base derivation.
Cubic Inch to Cubic Meter conversion formula
The relationship between cubic inches and cubic meters:
To convert cubic inches to cubic meters, multiply the value in cubic inches by 1.638706e-5. To reverse, multiply cubic meters by 61023.7440947323.
How to use this converter
Type a value into the calculator. The result in cubic meters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Cubic Meter to Cubic Inch converter for the reverse direction.
Step-by-step: convert cubic inches to cubic meters
- Write down the value in cubic inches (in³).
- Multiply that value by the factor 1.638706e-5.
- The product is the equivalent value in cubic meters (m³).
- To reverse, multiply the cubic meter value by 61023.7440947323.
Worked examples
Example 1 — Convert 1 in³ to m³:
1 × 1.638706e-5 = 1.638706e-5 m³
Example 2 — Convert 100 in³ to m³:
100 × 1.638706e-5 = 0.0016387064 m³
Real-world example — Macro-scale buildup
A million cubic inches equals exactly one cubic meter — the conversion that bridges microscale features and macroscale objects in microfluidic, biomedical, and semiconductor packaging design.
1000000 in³ × 1.638706e-5 = 16.387064 m³
Real-world example — Quarter-meter measurement reference
A 250,000-cubic inch length equals 0.25 cubic meters — useful for comparing supply-chain spec sheets where some lengths are quoted in the smaller unit and some in the larger.
250000 in³ × 1.638706e-5 = 4.096766 m³
Real-world example — From microscopic to macroscopic
A million cubic inches equals exactly one cubic meter. This kind of conversion appears in microfluidics, where total channel length is given in cubic meters but feature widths are in cubic inches.
1000000 in³ × 1.638706e-5 = 16.387064 m³
Cubic Inch to Cubic Meter conversion table
Standard reference values for converting cubic inches to cubic meters:
| Cubic Inch [in³] | Cubic Meter [m³] |
|---|---|
| 0.01 | 1.638706e-7 |
| 0.1 | 1.638706e-6 |
| 1 | 1.638706e-5 |
| 2 | 3.277413e-5 |
| 3 | 4.916119e-5 |
| 4 | 6.554826e-5 |
| 5 | 8.193532e-5 |
| 10 | 0.0001638706 |
| 20 | 0.0003277413 |
| 30 | 0.0004916119 |
| 40 | 0.0006554826 |
| 50 | 0.0008193532 |
| 100 | 0.0016387064 |
| 500 | 0.008193532 |
| 1000 | 0.016387064 |
Frequently asked questions
How many cubic meters is 1 cubic inch?
How do I convert cubic inches to cubic meters?
How do I convert cubic meters back to cubic inches?
How many cubic meters is 100 cubic inches?
Popular volume unit conversions
Convert Cubic Inch to other volume units
Show all Cubic Inch conversions
Metric / SI (8 units)
US Customary (Liquid) (8 units)
Imperial (UK) (4 units)
Cubic (length-derived) (2 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 in³ = 1.638706e-5 m³) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.