The cubic inch
The cubic inch equals exactly 0.016387064 liters (2.54 cm cubed). It is the traditional unit for US automotive engine displacement (before liters became common) and for small-part and packaging volumes.
Cubic inches to Milliliters Converter
1 in³ = 16.3871 mL (cubic inch → milliliter)
1 in³ = 16.3871 mL
1 cubic inch equals 16.3871 milliliters. To convert cubic inches to milliliters, multiply the cubic inch value by 16.3871. For quick reference: 1 in³ = 16.3871 mL, 5 in³ = 81.9353 mL, 10 in³ = 163.871 mL, 100 in³ = 1638.71 mL.
Formula
Milliliters = Cubic inches × 16.3871Quick
How to convert cubic inches to milliliters
Take your value
Start with your value in cubic inches.
Multiply by 16.3871
Multiply the cubic inch value by 16.3871. This is the exact conversion factor from cubic inches to milliliters.
Read the result
The product is your value in milliliters. For example, 5 in³ × 16.3871 = 81.9353 mL.
Conversion formula
The exact factor from cubic inches to milliliters is 16.3871.
Milliliters = Cubic inches × 16.3871
Cubic inches to Milliliters conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Cubic inches (in³) | Milliliters (mL) |
|---|---|
| 0.1 in³ | 1.6387 mL |
| 0.25 in³ | 4.0968 mL |
| 0.5 in³ | 8.1935 mL |
| 1 in³ | 16.387 mL |
| 1.5 in³ | 24.581 mL |
| 2 in³ | 32.774 mL |
| 2.5 in³ | 40.968 mL |
| 3 in³ | 49.161 mL |
| 4 in³ | 65.548 mL |
| 5 in³ | 81.935 mL |
| 6 in³ | 98.322 mL |
| 7 in³ | 114.71 mL |
| 8 in³ | 131.1 mL |
| 9 in³ | 147.48 mL |
| 10 in³ | 163.87 mL |
| 12 in³ | 196.64 mL |
| 15 in³ | 245.81 mL |
| 20 in³ | 327.74 mL |
| 25 in³ | 409.68 mL |
| 30 in³ | 491.61 mL |
| 40 in³ | 655.48 mL |
| 50 in³ | 819.35 mL |
| 60 in³ | 983.22 mL |
| 75 in³ | 1229 mL |
| 100 in³ | 1638.7 mL |
| 125 in³ | 2048.4 mL |
| 150 in³ | 2458.1 mL |
| 200 in³ | 3277.4 mL |
| 250 in³ | 4096.8 mL |
| 300 in³ | 4916.1 mL |
| 400 in³ | 6554.8 mL |
| 500 in³ | 8193.5 mL |
| 600 in³ | 9832.2 mL |
| 750 in³ | 12290 mL |
| 1000 in³ | 16387 mL |
| 1500 in³ | 24581 mL |
| 2000 in³ | 32774 mL |
| 2500 in³ | 40968 mL |
| 3000 in³ | 49161 mL |
| 4000 in³ | 65548 mL |
| 5000 in³ | 81935 mL |
| 7500 in³ | 122903 mL |
| 10000 in³ | 163871 mL |
| 15000 in³ | 245806 mL |
| 20000 in³ | 327741 mL |
| 25000 in³ | 409677 mL |
| 30000 in³ | 491612 mL |
| 40000 in³ | 655483 mL |
| 50000 in³ | 819353 mL |
| 100000 in³ | 1638706 mL |
Real-world reference
A classic American V8 engine might displace 350 cubic inches. A standard shoebox is roughly 900 cubic inches. In milliliters, that gives you: 1 in³ = 16.3871 mL, 10 in³ = 163.871 mL, 100 in³ = 1638.71 mL.
Frequently asked questions
- How many milliliters are in 1 cubic inch?
- 1 cubic inch equals 16.3871 milliliters.
- How do I convert cubic inches to milliliters?
- Multiply the cubic inch value by 16.3871. So x in³ × 16.3871 = the equivalent in mL.
- What is 5 cubic inches in milliliters?
- 5 cubic inches equals 81.9353 milliliters.
- What is 10 cubic inches in milliliters?
- 10 cubic inches equals 163.871 milliliters.
- What is 100 cubic inches in milliliters?
- 100 cubic inches equals 1638.71 milliliters.
- How do I convert back from milliliters to cubic inches?
- Multiply the milliliter value by 0.0610237. For example, 1 mL = 0.0610237 in³.
- Is the cubic inch bigger than the milliliter?
- Yes. 1 cubic inch is larger than 1 milliliter — specifically 16.3871 times larger.
- Are these conversion factors exact?
- The underlying imperial/US unit definitions are exact; the displayed factor (16.3871) is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.
About the cubic inch and the milliliter
The milliliter
The milliliter (mL) is a metric unit of volume equal to one-thousandth of a liter, or one cubic centimeter. It is the everyday unit for medication dosing, beverage sizes outside the US, and cooking in most of the world. Note that a US fluid ounce is 29.5735 mL, while a UK fluid ounce is 28.4131 mL.