Convert Cubic Inch to Metric Cup
Convert cubic inches to metric cups instantly. 1 cubic inch = 0.065548256 metric cup — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Metric Cup 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.
Metric Cup
A metric cup is exactly 250 milliliters.
Adopted with metrication in Australia, New Zealand and other countries.
Standard cooking cup in metric-recipe countries.
Metrication, 20th c.
Cubic Inch to Metric Cup conversion formula
The relationship between cubic inches and metric cups:
To convert cubic inches to metric cups, multiply the value in cubic inches by 0.065548256. To reverse, multiply metric cups by 15.2559360237.
How to use this converter
Type a value into the calculator. The result in metric cups updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Metric Cup to Cubic Inch converter for the reverse direction.
Step-by-step: convert cubic inches to metric cups
- Write down the value in cubic inches (in³).
- Multiply that value by the factor 0.065548256.
- The product is the equivalent value in metric cups (cup).
- To reverse, multiply the metric cup value by 15.2559360237.
Worked examples
Example 1 — Convert 1 in³ to cup:
1 × 0.065548256 = 0.065548256 cup
Example 2 — Convert 100 in³ to cup:
100 × 0.065548256 = 6.5548256 cup
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 cubic inches), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 in³ × 0.065548256 = 0.196644768 cup
Real-world example — Plastic-film thickness alternates
A 150-cubic inch plastic film converts cleanly to metric cups — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 in³ × 0.065548256 = 9.8322384 cup
Real-world example — Hair-width scale measurements
A 70-cubic inch measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like metric cups for direct comparison across supplier datasheets.
70 in³ × 0.065548256 = 4.58837792 cup
Cubic Inch to Metric Cup conversion table
Standard reference values for converting cubic inches to metric cups:
| Cubic Inch [in³] | Metric Cup [cup] |
|---|---|
| 0.01 | 0.0006554826 |
| 0.1 | 0.0065548256 |
| 1 | 0.065548256 |
| 2 | 0.131096512 |
| 3 | 0.196644768 |
| 4 | 0.262193024 |
| 5 | 0.32774128 |
| 10 | 0.65548256 |
| 20 | 1.31096512 |
| 30 | 1.96644768 |
| 40 | 2.62193024 |
| 50 | 3.2774128 |
| 100 | 6.5548256 |
| 500 | 32.774128 |
| 1000 | 65.548256 |
Frequently asked questions
How many metric cups is 1 cubic inch?
How do I convert cubic inches to metric cups?
How do I convert metric cups back to cubic inches?
How many metric cups 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 = 0.065548256 cup) 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.