Cubic inches to US fluid ounces Converter

Convert cubic inches to us fluid ounces instantly.

Common volume units

Cubic inch (in³)

Definition: A cubic inch is the volume of a cube with sides of one inch. It equals about 16.387 milliliters.

History/origin: The cubic inch developed from the inch-based customary system and became common in mechanics and product design.

Current use: Cubic inches are used for engine displacement, packaging dimensions, and small mechanical volumes, especially in the United States.

US fluid ounce (fl oz)

Definition: The US fluid ounce is a small liquid-volume unit. There are 128 US fl oz in one US gallon, and each fl oz is about 29.57 mL.

History/origin: Fluid ounces separated liquid volume from weight ounces, and the US version kept its relationship to the American gallon.

Current use: US fl oz appears on soda cans, water bottles, shampoo, lotion, medicine, nutrition facts, measuring cups, and American liquid recipes.

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