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Engine Displacement Converter

Convert engine displacement between cubic centimeters, liters and cubic inches.

Result

Liters
2
Cubic Inches
122

1 liter = 1000 cc, and 1 cubic inch = 16.387 cc - classic American engines like the "350" (5.7L) or "454" (7.4L) are traditionally named by their cubic inch displacement.

About the Engine Displacement

This calculator converts an engine's total displacement, entered in cubic centimeters, into liters and cubic inches. It is aimed at car enthusiasts and mechanics who need to translate between the metric displacement figures used by most manufacturers and the cubic-inch naming still used for classic American engines like the 350 or 454.

How It Works

You enter the engine's displacement in cubic centimeters (cc). The calculator divides that value by 1000 to get liters, and divides it by 16.387 (the number of cubic centimeters in one cubic inch) to get cubic inches.

Liters = cc / 1000; Cubic Inches = cc / 16.387

Formula & Methodology

Both conversions come from fixed volume relationships: exactly 1000 cc equal 1 liter, and exactly 16.387 cc equal 1 cubic inch (based on 1 inch equaling 2.54 cm, cubed). To convert by hand, divide the cc figure by whichever constant matches the target unit. The classic American practice of naming engines after their rounded cubic-inch figure, such as the 350 cubic inch V8, comes directly from this same division applied to that engine's actual displacement in cc.

Examples

Modern turbocharged four-cylinder

A 2000 cc engine converts to 2.00 liters and about 122.0 cubic inches, matching how a '2.0L' badge and its cubic-inch equivalent relate.

Classic American V8

A 5700 cc engine, the actual displacement behind the historic '350' V8 name, converts to 5.70 liters and about 347.8 cubic inches, close to the rounded 350 figure used in its marketing name.

Advantages

  • Bridges metric and imperial displacement figures for enthusiasts researching engines from different markets.
  • Explains at a glance why a classic American engine's cubic-inch name differs from its metric liter badge.
  • Handles both directions of the common cc-to-liter and cc-to-cubic-inch lookups in one input.

Common Mistakes

  • Assuming a larger displacement number automatically means more horsepower, when output also depends on compression, turbocharging, and tuning.
  • Confusing an engine's total displacement with its per-cylinder displacement when comparing specs.
  • Reading a cubic-inch marketing name, such as '350,' as an exact rather than a rounded figure.

Edge Cases to Watch For

  • The cc value entered is assumed to be the engine's total displacement across all cylinders, not the displacement of a single cylinder.
  • The calculator does not validate the input against typical engine sizes, so any number, however unrealistic, will still produce a converted result.
  • Rounding to 2 decimal places for liters and 1 decimal place for cubic inches means two very close displacement values can appear identical after conversion.

Common Use Cases

  • Car enthusiasts researching or comparing engine specs across metric and imperial listings.
  • Mechanics cross-referencing imported vehicle documentation against domestic cubic-inch conventions.
  • Buyers or restorers matching a classic American engine's nickname to its precise metric displacement.
Written & fact-checked by the Calculateus TeamLast updated August 5, 2026How we verify our formulas

Frequently asked questions

Why do American engines use cubic inches while most of the world uses liters?

It's largely historical - the US automotive industry adopted cubic inch measurements early on (giving engines their classic names like the "350" or "454"), while most of the rest of the world standardized on the metric liter, which is why the same engine is often marketed under two different displacement numbers.

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Conclusion

Because the relationship between cc, liters, and cubic inches is fixed by definition, this calculator gives an exact conversion every time, useful whether you are decoding a badge or comparing spec sheets from different countries. It converts volume only, not performance, so use it alongside other specs when evaluating an engine.

References