Convert Cubic Inches to Cups
Convert Cubic Inches (in³) to Cups (cup) instantly and accurately.
Conversion Formula
cup = in³ × 0.06926406926
About Cubic Inches
A cubic inch (in³) is the volume of a cube with sides of one inch (25.4 mm), equal to approximately 16.387 mL. It is widely used in US engineering and manufacturing - engine displacement was traditionally described in cubic inches (a 350 in³ V8 engine displaces 5.7 liters), and product specifications for items sold in the US frequently reference cubic inches. Speaker cabinet volumes, wine bottle capacities in older US standards, refrigerator compartment sizes, and box shipping calculations in imperial units all use cubic inches. One liter equals approximately 61.024 cubic inches.
About Cups
A cup = 8 fl oz = 16 tbsp ≈ 236.6 mL - the fundamental unit of American cooking. Almost every US recipe uses cups for dry and liquid ingredients. The US customary cup (236.588 mL) differs from the US legal cup (240 mL, used in nutrition labelling) and the metric cup (Australia/Canada: 250 mL). Kitchen sets come in 1/4, 1/3, 1/2, and 1 cup sizes. 2 cups = 1 US pint.
Quick Reference Table
| Cubic Inches (in³) | Cups (cup) |
|---|---|
| 1 in³ | 0.0692641 cup |
| 2 in³ | 0.138528 cup |
| 5 in³ | 0.34632 cup |
| 10 in³ | 0.692641 cup |
| 25 in³ | 1.7316 cup |
| 50 in³ | 3.4632 cup |
| 100 in³ | 6.92641 cup |