Convert cubic centimeters, milliliters, liters, or cubic meters to cubic inches, cubic feet, US fluid ounces, or US gallons and back.
Assumptions Assumptions
- Conversions are volume-to-volume only—no mass or density adjustments.
- Unit standards used: 1 in³ = 16.387064 cm³; 1 ft³ = 28,316.846592 cm³; 1 US fl oz = 29.5735295625 cm³; 1 US gal = 3,785.411784 cm³; 1 L = 1,000 cm³; 1 m³ = 1,000,000 cm³; and 1 cm³ = 1 mL.
- US liquid measures are used (US fl oz and US gallon); UK/Imperial fluid measures are not supported.
When to Use This Calculator
- Converting engine displacement between cm³ and cubic inches.
- Translating tank, aquarium, or container volumes across metric and US customary units.
- Quickly switching between cm³/mL/L and in³/ft³/US gallons without separate charts.
Input Definitions
- Cubic Centimeters — choose cm³ directly, or enter mL (1:1), L (×1,000), or m³ (×1,000,000).
- Inches (Volume) — choose in³, ft³, US fluid ounces, or US gallons.
- Core conversions — in³ = cm³ ÷ 16.387064; cm³ = in³ × 16.387064. Also: 1 ft³ = 1,728 in³; 1 US gal = 231 in³; 1 US fl oz = 1.8046875 in³.
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Cm^3 to Inches Formula
The following formulas convert cubic centimeters to cubic inches and back using the exact definition 1 in³ = 16.387064 cm³.
in³ = (cm³) / (16.387064)
cm³ = 16.387064 in³
- 1 in³ = 16.387064 cm³
- 1 ft³ = 28,316.846592 cm³.
- 1 US fluid ounce = 29.5735295625 cm³
- 1 US gallon = 3,785.411784 cm³.
- 1 L = 1,000 cm³
- 1 m³ = 1,000,000 cm³.
- 1 cm³ = 1 mL.
How do you convert cubic centimeters to cubic inches? Divide the value in cm³ by 16.387064 to get in³.
How do you convert cubic inches to cubic centimeters? Multiply the value in in³ by 16.387064 to get cm³.
Cm^3 to Inches Conversion Table
| cm³ | in³ |
|---|---|
| 1 | 0.061 |
| 5 | 0.305 |
| 10 | 0.610 |
| 25 | 1.526 |
| 50 | 3.051 |
| 75 | 4.577 |
| 100 | 6.102 |
| 125 | 7.628 |
| 150 | 9.154 |
| 200 | 12.205 |
| 250 | 15.256 |
| 300 | 18.307 |
| 400 | 24.409 |
| 500 | 30.512 |
| 750 | 45.768 |
| 1,000 | 61.024 |
| 2,000 | 122.047 |
| 5,000 | 305.119 |
| 10,000 | 610.237 |
| * Exact definition: 1 in³ = 16.387064 cm³; therefore in³ = cm³ ÷ 16.387064. | |
Example Problem
Convert 250 cm³ to cubic inches.
Use the formula: in³ = cm³ ÷ 16.387064.
in³ = 250 ÷ 16.387064 ≈ 15.2559 in³
