Convert Cubic Inches to Cubic Centimeters Instantly
Use this Cubic Inches to Cubic Centimeters converter to change volume from cubic inches (in³) into cubic centimeters (cm³) instantly. Enter any whole or decimal cubic-inch value to see cubic centimeters, milliliters, liters and cubic feet, or switch to the reverse converter when your starting volume is already in cm³.
Convert cubic inches to cubic centimeters, reverse cm³ to in³, combine cubic inches with extra milliliters, or convert one volume across in³, cm³, mL, liters, ft³ and m³.
Enter cubic inches to calculate the equivalent volume in cubic centimeters and other common units.
Decimals are supported, such as 2.5 in³ or 17.75 in³.
Reverse the conversion by dividing cubic centimeters by 16.387064.
Useful when a volume is written as cubic inches plus an additional milliliter amount.
Enter one volume and convert it among cubic inches, cubic centimeters, milliliters, liters, cubic feet and cubic meters.
A cubic inch measures volume, so the linear inch-to-centimeter relationship must be cubed. One inch equals exactly 2.54 centimeters. Therefore, one cubic inch equals 2.54 × 2.54 × 2.54 = exactly 16.387064 cubic centimeters.
To convert cubic inches to cubic centimeters, multiply the cubic-inch value by 16.387064. For example, 10 in³ equals 163.87064 cm³ and 100 in³ equals 1,638.7064 cm³.
Example: 25 in³ × 16.387064 = 409.6766 cm³.
Example: 327.74128 cm³ ÷ 16.387064 = 20 in³.
One cubic centimeter has the same volume as one milliliter, so any in³ to cm³ result has the same numeric value in milliliters. For example, 5 in³ equals 81.93532 cm³ and also 81.93532 mL.
The table below shows common cubic-inch values converted to cubic centimeters, milliliters, liters and cubic feet. It stays inside the responsive table wrapper on phones and tablets.
| Cubic Inches | Cubic Centimeters | Milliliters | Liters | Cubic Feet |
|---|---|---|---|---|
| 1 in³ | 16.387064 cm³ | 16.387064 mL | 0.016387 L | 0.000579 ft³ |
| 2 in³ | 32.774128 cm³ | 32.774128 mL | 0.032774 L | 0.001157 ft³ |
| 5 in³ | 81.93532 cm³ | 81.93532 mL | 0.081935 L | 0.002894 ft³ |
| 10 in³ | 163.87064 cm³ | 163.87064 mL | 0.163871 L | 0.005787 ft³ |
| 20 in³ | 327.74128 cm³ | 327.74128 mL | 0.327741 L | 0.011574 ft³ |
| 25 in³ | 409.6766 cm³ | 409.6766 mL | 0.409677 L | 0.014468 ft³ |
| 50 in³ | 819.3532 cm³ | 819.3532 mL | 0.819353 L | 0.028935 ft³ |
| 61.0237 in³ | ≈ 1,000 cm³ | ≈ 1,000 mL | ≈ 1 L | 0.035315 ft³ |
| 75 in³ | 1,229.0298 cm³ | 1,229.0298 mL | 1.22903 L | 0.043403 ft³ |
| 100 in³ | 1,638.7064 cm³ | 1,638.7064 mL | 1.638706 L | 0.05787 ft³ |
| 125 in³ | 2,048.383 cm³ | 2,048.383 mL | 2.048383 L | 0.072338 ft³ |
| 250 in³ | 4,096.766 cm³ | 4,096.766 mL | 4.096766 L | 0.144676 ft³ |
| 500 in³ | 8,193.532 cm³ | 8,193.532 mL | 8.193532 L | 0.289352 ft³ |
| 1,000 in³ | 16,387.064 cm³ | 16,387.064 mL | 16.387064 L | 0.578704 ft³ |
| 1,728 in³ | 28,316.846592 cm³ | 28,316.846592 mL | 28.316847 L | 1 ft³ |
5 × 16.387064 = 81.93532 cm³.
10 × 16.387064 = 163.87064 cm³.
25 × 16.387064 = 409.6766 cm³.
100 × 16.387064 = 1,638.7064 cm³.
Decimal cubic-inch measurements use the same factor. For example, 2.5 in³ equals 40.96766 cm³, 12.75 in³ equals 208.935066 cm³ and 37.5 in³ equals 614.5149 cm³.
A volume conversion has three dimensions. Since one inch equals exactly 2.54 centimeters, a cube measuring 1 inch × 1 inch × 1 inch becomes 2.54 cm × 2.54 cm × 2.54 cm. Multiplying those three metric dimensions gives exactly 16.387064 cm³.
A 1-inch cube and a 2.54-centimeter cube represent the same physical volume.
A cubic inches to cubic centimeters conversion is useful whenever an imperial-style volume needs to be compared with a metric specification. Engine displacement, small containers, machine parts, packaging, product cavities, scientific equipment and technical drawings may use in³, cm³ or mL.
For example, 100 in³ is about 1,638.7 cm³, while 10 in³ is about 163.87 cm³.
A cubic inch (in³) is the volume of a cube measuring one inch on every side. A cubic centimeter (cm³) is the volume of a cube measuring one centimeter on every side. Because an inch is larger than a centimeter, one cubic inch contains many cubic centimeters.
Decimal values use the same exact factor. Multiply the cubic-inch value by 16.387064. For example, 3.25 in³ equals 53.260458 cm³, 18.5 in³ equals 303.160684 cm³ and 47.125 in³ equals 772.240413 cm³.
To reverse the calculation, divide cm³ by 16.387064. For example, 163.87064 cm³ equals 10 in³, 819.3532 cm³ equals 50 in³ and 1,638.7064 cm³ equals 100 in³. Use the orange reverse calculator above for instant results.
Engine displacement is often expressed in cubic inches in older or U.S.-focused contexts and in cubic centimeters or liters in metric specifications. Since 1 cm³ equals 1 mL and 1,000 cm³ equals 1 liter, converting cubic inches to cm³ also makes it easy to estimate liters.
For example, a 350 in³ engine is approximately 5,735.47 cm³, or about 5.735 liters.
Small enclosures, containers and machine components may be dimensioned in inches while their capacity or internal volume is specified in metric units. Converting in³ to cm³ helps compare the same space across specifications without changing the physical dimensions.
One cubic centimeter equals exactly one milliliter. One thousand cubic centimeters equal one liter. Therefore, the cubic-centimeter result can be read directly as milliliters, then divided by 1,000 to obtain liters.
2.54 converts length, not cubic volume.
6.4516 converts square area, not cubic volume.
cm³ measures volume, while cm² measures area.
Use the exact 16.387064 factor before rounding.
Continue converting volume with Cubic Centimeters to Cubic Inches, Cubic Inches to Liters, Milliliters to Cubic Inches, Liters to Milliliters, Liters to Cubic Meters and Cubic Centimeters to Liters. These related tools are useful when products and technical specifications mix metric and imperial volume units.
The easiest rule is multiply cubic inches by 16.387064. Useful landmarks include 1 in³ = 16.387064 cm³, 10 in³ = 163.87064 cm³, 50 in³ = 819.3532 cm³ and 100 in³ = 1,638.7064 cm³.
Quick answers about in³, cm³, milliliters and volume conversion.