Cubic Centimeters to Cubic Inches

Cubic centimeters and cubic inches

The cubic centimeter (cc, cm³) is a cube 1 cm on each side, exactly one milliliter. Engine and motorcycle displacement and medical syringes are often labeled in cc.

The cubic inch is a cube 1 inch on each side: exactly 16.387064 cubic centimeters. Classic American engine displacement (a 350 cubic-inch V8) and some packaging specs use cubic inches.

Worked example

Convert 1,000 cm³: 1,000 × 0.06102374409 = 61.02374409, so 1,000 cubic centimeters is 61.02374409 cubic inches. Likewise 2,000 cm³ = 122.0474882 in³.

Estimating in your head

Divide by 16 for a quick figure; it is off by about 2.4%. For 1,000 cm³ that gives 62.5 in³, against 61.0237 exactly.

Going the other way

To convert cubic inches to cubic centimeters, divide by 0.06102374409 (or multiply by 16.387064). The swap button between the boxes opens that page.

in³ = cm³ × 0.06102374409

1 cm³ = 0.000001 m³ and 1 in³ = 0.000016387064 m³, both by definition, so the factor is their ratio: 0.06102374409 (rounded here; the page uses the full value). Results drop binary floating-point noise beyond 15 significant digits and display at the precision you choose (6 significant figures by default). Copy result copies the full value.