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Equivalent volume
Accurate volume conversion tool for cubic inches, litres, and more
Convert cubic inches to litres instantly with precise calculations. Includes bidirectional conversion and detailed volume breakdowns for 2026.
Professional volume conversion for automotive, engineering, cooking, and science
Convert cubic inches to litres with full precision using the exact conversion factor. One cubic inch equals exactly 0.016387064 litres — our tool delivers instant, accurate results for any value you enter, from tiny fractions to large volumes.
Switch seamlessly between cubic inches to litres and litres to cubic inches conversion modes. Get instant results in multiple volume units including cubic centimetres, millilitres, cubic feet, and gallons all from a single input value.
Perfect for automotive engine displacement conversions, cooking and recipe scaling, industrial equipment specifications, scientific research, and any situation requiring precise conversion between imperial cubic inches and metric litres.
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A cubic inch (in³) is a unit of volume in the imperial and US customary measurement systems, defined as the volume of a cube with sides of one inch. A litre (L) is the standard metric unit of volume equal to one cubic decimetre (1 dm³ = 0.001 m³). The exact conversion factor is 1 cubic inch = 0.016387064 litres, which means one litre equals approximately 61.024 cubic inches.
This conversion is particularly important in the automotive industry, where engine displacement is commonly expressed in cubic inches in the United States but in litres in most other countries. For example, a classic American V8 engine with a 350 in³ displacement equals approximately 5.7 litres. You can also explore our acres to square metres converter for related metric unit conversions used in land measurement.
Example: 350 in³ = 350 × 0.016387064 = 5.735 L
1 cubic inch = 16.387 cm³ = 16.387 mL = 0.016387 litres
Use this reference table to quickly look up common cubic inches to litres conversions without needing a calculator. Common automotive and engineering values are included for easy reference.
| Cubic Inches (in³) | Litres (L) | Cubic Centimetres (cm³) | Millilitres (mL) |
|---|---|---|---|
| 1 in³ | 0.01639 L | 16.387 cm³ | 16.387 mL |
| 5 in³ | 0.08194 L | 81.935 cm³ | 81.935 mL |
| 10 in³ | 0.16387 L | 163.871 cm³ | 163.871 mL |
| 50 in³ | 0.81935 L | 819.353 cm³ | 819.353 mL |
| 100 in³ | 1.6387 L | 1,638.706 cm³ | 1,638.706 mL |
| 200 in³ | 3.2774 L | 3,277.413 cm³ | 3,277.413 mL |
| 305 in³ | 4.998 L | 4,998.056 cm³ | 4,998.056 mL |
| 350 in³ | 5.7355 L | 5,735.474 cm³ | 5,735.474 mL |
| 400 in³ | 6.5548 L | 6,554.826 cm³ | 6,554.826 mL |
| 500 in³ | 8.1935 L | 8,193.532 cm³ | 8,193.532 mL |
| 1000 in³ | 16.387 L | 16,387.064 cm³ | 16,387.064 mL |
Engine displacement is one of the most common real-world uses of cubic inch to litre conversion. American muscle cars and trucks traditionally express engine size in cubic inches (e.g., 454 in³), while international specifications use litres (7.44 L). Knowing both helps buyers and mechanics compare engines globally.
Recipes from the United States often use imperial measurements including cubic inch volumes for baking pan dimensions and food portions. Converting these to litres helps international cooks and bakers follow American recipes accurately using metric measuring tools.
Hydraulic cylinders, pneumatic systems, and industrial equipment manufactured in the US are often specified in cubic inches. Engineers working with international standards or metric documentation need accurate cubic inch to litre conversions for equipment selection and system design.
One cubic inch equals exactly 0.016387064 litres (or 16.387064 millilitres). This means 1 litre = approximately 61.024 cubic inches. The conversion factor is derived from the exact definition: 1 inch = 25.4 mm exactly, so 1 in³ = 25.4³ mm³ = 16,387.064 mm³ = 16.387064 cm³ = 0.016387064 L.
Converting cubic inches to litres requires multiplying by the exact conversion factor. Here are three simple steps to follow every time:
Convert 454 in³ (classic Chevy Big Block V8) to litres:
454 × 0.016387064 = 7.440 L — confirming the famous "7.4 litre" engine designation.
The reverse conversion — litres to cubic inches — is equally straightforward. Simply divide by 0.016387064, or equivalently multiply by 61.023744. For example, a 2.0 litre engine equals 2.0 × 61.023744 = 122.047 cubic inches. This is useful when working with metric specifications and needing to reference equivalent imperial values. Our bidirectional converter handles both directions automatically with full precision.
Do not confuse cubic inches with square inches or plain inches. Volume conversions use cubic units — always cube the linear conversion factor. Since 1 inch = 2.54 cm, 1 in³ = 2.54³ cm³ = 16.387 cm³. Using 2.54 (instead of 2.54³) is a frequent error that gives completely wrong results.
Engine displacement refers to the total volume swept by all pistons inside a combustion engine's cylinders. In the United States, engine displacement has historically been quoted in cubic inches — a tradition that dates back to the early days of American automobile manufacturing. However, since the 1980s, global standardisation has shifted the industry toward litres as the primary unit, making the cubic inches to litres converter an essential tool for automotive enthusiasts, mechanics, and buyers comparing classic and modern vehicles.
Some iconic engine displacements include the 327 in³ (5.4 L) small block Chevy, the 396 in³ (6.5 L) big block, and the legendary 426 in³ Hemi (7.0 L). Understanding these conversions helps bridge the gap between American muscle car heritage and modern international automotive specifications. For other unit conversions, check our BTU to joules converter for energy unit needs.
Engine displacement conversion is one of the most practical uses of cubic inch to litre conversion. Our tool helps automotive enthusiasts, mechanics, and buyers compare engine sizes across American and international vehicles with ease.
More Converters →Converting between imperial cubic inches and metric litres is essential in engineering, manufacturing, and science. Our free bidirectional tool handles all values with full precision using the exact SI conversion factor.
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