Convert Cubic Inch to US Cup
Convert cubic inches to us cups instantly. 1 cubic inch = 0.0692640693 us cup — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US 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.
US Cup
A US customary cup is one sixteenth of a US gallon (236.588 mL).
Standardized for American cooking; distinct from the 240 mL US legal cup and the 250 mL metric cup.
The standard US cooking-volume unit in recipes.
US customary cooking measure.
Cubic Inch to US Cup conversion formula
The relationship between cubic inches and us cups:
To convert cubic inches to us cups, multiply the value in cubic inches by 0.0692640693. To reverse, multiply us cups by 14.4375.
How to use this converter
Type a value into the calculator. The result in us 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 US Cup to Cubic Inch converter for the reverse direction.
Step-by-step: convert cubic inches to us cups
- Write down the value in cubic inches (in³).
- Multiply that value by the factor 0.0692640693.
- The product is the equivalent value in us cups (cup).
- To reverse, multiply the us cup value by 14.4375.
Worked examples
Example 1 — Convert 1 in³ to cup:
1 × 0.0692640693 = 0.0692640693 cup
Example 2 — Convert 100 in³ to cup:
100 × 0.0692640693 = 6.9264069264 cup
Real-world example — Plastic-film thickness alternates
A 150-cubic inch plastic film converts cleanly to us cups — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 in³ × 0.0692640693 = 10.3896103896 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 us cups for direct comparison across supplier datasheets.
70 in³ × 0.0692640693 = 4.8484848485 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 × 0.0692640693 = 0.2077922078 cup
Cubic Inch to US Cup conversion table
Standard reference values for converting cubic inches to us cups:
| Cubic Inch [in³] | US Cup [cup] |
|---|---|
| 0.01 | 0.0006926407 |
| 0.1 | 0.0069264069 |
| 1 | 0.0692640693 |
| 2 | 0.1385281385 |
| 3 | 0.2077922078 |
| 4 | 0.2770562771 |
| 5 | 0.3463203463 |
| 10 | 0.6926406926 |
| 20 | 1.3852813853 |
| 30 | 2.0779220779 |
| 40 | 2.7705627706 |
| 50 | 3.4632034632 |
| 100 | 6.9264069264 |
| 500 | 34.632034632 |
| 1000 | 69.2640692641 |
Frequently asked questions
How many us cups is 1 cubic inch?
How do I convert cubic inches to us cups?
How do I convert us cups back to cubic inches?
How many us 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 = 0.0692640693 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.