Convert Cubic Inch to Milliliter (in³ → ml)
The cubic inch measures classic American engine displacement and small-volume manufacturing tolerances.
Cubic Inch to Milliliter Conversion Table
10 common values| Cubic Inch | Milliliter |
|---|---|
| 1 in³ | 16.387064 ml |
| 2 in³ | 32.774128 ml |
| 5 in³ | 81.93532 ml |
| 10 in³ | 163.87064 ml |
| 20 in³ | 327.74128 ml |
| 50 in³ | 819.3532 ml |
| 100 in³ | 1,638.7064 ml |
| 200 in³ | 3,277.4128 ml |
| 500 in³ | 8,193.532 ml |
| 1,000 in³ | 16,387.064 ml |
How to Convert Cubic Inch to Milliliter Manually
Step by StepConverting cubic inches to milliliters is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.
- 1Take your value in cubic inchesStart with the number of cubic inches (in³) you want to convert.
- 2Multiply by 16.387064The conversion factor from in³ to ml is 16.387064. Multiply your value by this number.
- 3Read the result in millilitersThe result is your value in milliliters (ml).
Formula
Multiply the value in cubic inches by 16.387064. For the reverse direction, multiply by 0.061024.
ml = in³ × 16.387064in³ = ml × 0.061024Tips
Use these in everyday conversions- 1 in³ = 16.387 cm³ exactly.
- To convert cubic inches to litres, divide by 61.02.
- US automotive ads today quote both cu in and L for classic cars.
Common Mistakes
Avoid these- Confusing in³ with in² or linear inches.
- Using 16 instead of 16.387 on precision machining.
- Assuming modern European engines are marked in cu in — they are always in L or cc.
About Cubic Inch and Milliliter
What is the Cubic Inch?
The cubic inch equals exactly 16.387064 cubic centimeters and is the traditional American unit for engine displacement and small-volume manufacturing measurements. Classic American muscle cars were famously identified by their cubic-inch engine size: the Ford 'Boss 429' had a 429-cubic-inch (7.0-liter) V8, and the Chevrolet 'Big Block 454' was 7.4 liters. Modern American automakers have transitioned mostly to liter-based naming (e.g., 'Hemi 5.7'), but the cubic inch persists in vintage car culture and aviation engines. It is also used for printer-paper coverage and industrial tolerances. The cubic inch relates to the cubic foot (1,728 in³ = 1 ft³), the cubic centimeter (1 in³ ≈ 16.39 cm³), the milliliter (1 in³ ≈ 16.39 mL), and the US fluid ounce (1 fl oz ≈ 1.805 in³).
- Classic US car engine displacement
- Firearms chamber and cartridge specs
- Some US machining and mould design
350 cu in V8 = 5.7 L engine. 302 cu in Ford V8 = 4.9 L. Modern specs typically give litres.
What is the Milliliter?
The milliliter equals one thousandth of a liter (0.001 L) and is the standard small-volume unit for cooking, pharmaceuticals, cosmetics, and laboratory work. One milliliter is exactly 1 cubic centimeter (1 cm³), a convenient relationship: 1 mL of pure water weighs 1 gram. The milliliter is the universal unit on medicine bottles (a typical cough syrup dose is 5 mL), cosmetics (a perfume bottle is 50–100 mL), and recipe measurements outside North America (a tablespoon is 15 mL, a teaspoon is 5 mL). Medical syringes are calibrated in mL, and IV drip rates are computed in mL per hour. The milliliter relates to the liter (1,000 mL = 1 L), the cubic centimeter (1 mL = 1 cm³ = 1 cc), the teaspoon (1 tsp = 5 mL), and the US fluid ounce (1 fl oz ≈ 29.57 mL).
- Liquid medication dosing in syringes
- Precise cooking and baking measurements
- Laboratory reagent measurement
A teaspoon holds about 5 ml. An espresso shot is 25–30 ml. An insulin pen delivers 0.1 ml increments.