Convert cubic inches to litres with an exact conversion factor, or calculate the volume of a box or cylinder in cubic inches and convert it automatically. The converter also shows millilitres, cubic metres and U.S. gallons for quick comparison. Every numeric field uses a faint 0 placeholder only — the zero is not a real entered value.
The faint 0 inside every numeric field is a placeholder only. Type your value directly — entering 5 gives 5, not 05.
Your result appears after you press Convert Volume.
The inch is defined exactly as 25.4 millimetres. Cubing that length gives 16.387064 cubic centimetres per cubic inch, and 1,000 cubic centimetres equal one litre.
Convert one volume into several useful units while keeping the exact cubic-inch-to-litre relationship visible.
Enter or calculate volume in cubic inches.
See the direct litre conversion from the exact factor.
Compare the same volume in millilitres.
See the result in the SI derived cubic-metre unit.
Compare with U.S. liquid gallons for reference.
Save the input, method and converted values.
The conversion from cubic inches to litres is a volume conversion between the inch-based system and the metric/SI system. One cubic inch is exactly 0.016387064 litre. To convert any volume in cubic inches to litres, multiply the cubic-inch value by 0.016387064.
Litres = Cubic Inches × 0.016387064For example, 100 cubic inches × 0.016387064 = 1.6387064 litres. The calculator performs the same operation and lets you choose how many decimal places to display.
The international inch is defined as exactly 25.4 millimetres. A cubic inch therefore measures 25.4 mm × 25.4 mm × 25.4 mm. That equals exactly 16,387.064 cubic millimetres, or 16.387064 cubic centimetres. Because one litre equals 1,000 cubic centimetres, one cubic inch equals exactly 0.016387064 litre.
| Cubic Inches | Litres | Millilitres |
|---|---|---|
| 1 in³ | 0.016387064 L | 16.387064 mL |
| 10 in³ | 0.16387064 L | 163.87064 mL |
| 50 in³ | 0.8193532 L | 819.3532 mL |
| 100 in³ | 1.6387064 L | 1,638.7064 mL |
| 250 in³ | 4.096766 L | 4,096.766 mL |
| 500 in³ | 8.193532 L | 8,193.532 mL |
| 1,000 in³ | 16.387064 L | 16,387.064 mL |
For the reverse conversion, divide litres by 0.016387064. The Reverse Convert option performs this calculation automatically.
Cubic Inches = Litres ÷ 0.016387064If you know the inside dimensions of a rectangular box, container or compartment in inches, multiply length × width × height to get cubic inches. The Box Volume option then converts that volume directly to litres.
Volume (in³) = Length (in) × Width (in) × Height (in)For example, a box measuring 12 in × 10 in × 8 in contains 960 cubic inches. That volume is approximately 15.7316 litres.
A cylindrical container uses π × radius² × height. Enter diameter and height in inches. The calculator divides diameter by two to obtain the radius, calculates cubic inches and then converts the result to litres.
Volume (in³) = π × Radius² (in) × Height (in)Litre and liter are two spellings of the same unit. “Litre” is widely used internationally and in British English, while “liter” is common in U.S. English. The unit symbol L is the same in either case.
Because one litre contains 1,000 millilitres, one cubic inch equals exactly 16.387064 millilitres. This conversion is useful for small containers and component volumes where litres would produce a small decimal.
One cubic inch equals 0.000016387064 cubic metre. The converter shows cubic metres automatically, which can be useful when comparing a small imperial volume with a larger metric project or specification.
There are exactly 231 cubic inches in one U.S. liquid gallon. The converter therefore divides cubic inches by 231 to show U.S. gallons. This is a different unit from the imperial gallon.
This conversion can be useful for engine or component displacement, small tanks, boxes, storage compartments, packaging, containers, laboratory or workshop measurements, and any specification that mixes inch dimensions with litre capacity.
For a rough mental conversion, 1 cubic inch is about 0.0164 litre, or about 16.4 millilitres. For accurate work, use the full exact factor rather than the rounded mental shortcut.
Continue with the Litres To Cubic Inches Converter, Cubic Inches To Cubic Feet Converter, Cubic Inches To Gallons Converter and Cubic Feet To Litres Converter.
Use exact definitions for conversion, then choose an appropriate number of decimal places for the final result.
Exact cubic-inch-to-litre relationship.
Exact cubic-inch-to-millilitre relationship.
Exact U.S. liquid gallon relationship.
Metric volume relationship.
Answers about the exact conversion factor, litres, millilitres, reverse conversion and shape volume.
One cubic inch equals exactly 0.016387064 litre.
Multiply cubic inches by 0.016387064.
The 0 is only a placeholder, not an entered value. Typing 5 gives 5 rather than 05.
100 cubic inches equal 1.6387064 litres.
1,000 cubic inches equal 16.387064 litres.
Yes. Use Reverse Convert, which divides litres by 0.016387064.
Yes. Enter length, width and height in inches.
Yes. Enter diameter and height in inches.
Yes. One cubic inch equals exactly 0.016387064 litre.
Yes. They are different spellings of the same volume unit.
Yes. It also shows cubic metres and U.S. gallons.
Yes. The PDF includes the input, method and converted values.
Authoritative references for SI units and exact inch-to-metric relationships.
U.S. National Institute of Standards and Technology guidance on SI volume units.
View NIST Volume GuidanceGuide for the use of the International System of Units (SI).
View NIST SP 811International reference for SI definitions and unit use.
View SI BrochureMeasurement-system resources and metric information.
Visit NIST Metric Resources