Engine Displacement Calculator

Swept volume from bore, stroke and cylinder count.

Runs in your browser — nothing is uploaded

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How to use Engine Displacement Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

Volume = π/4 × bore² × stroke × cylinders

Example: 86 mm bore and stroke across four cylinders give about 1,998.23 cc.

Questions

Does displacement tell me horsepower?

No. This is geometric swept volume; performance depends on many additional engine and operating factors.