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Calcolatore Rapporto di Compressione

Calcola il rapporto di compressione del motore dal volume spostato e dal volume della camera.

Introduzione

Compression Ratio Calculator — Calculate engine compression ratio from swept and clearance volume. Enter Swept volume (cc), Clearance volume (cc) to get an instant, accurate result.

Formula

Compression ratio = (swept volume + clearance volume) / clearance volume, where swept volume is the cylinder volume displaced by the piston stroke and clearance volume is what remains at top dead center.

Passo dopo passo

  1. Enter the Swept volume (cc).
  2. Enter the Clearance volume (cc).
  3. Click Calculate to see your result instantly.

Esempio pratico

Example: With Swept volume (cc) = 500, Clearance volume (cc) = 55, the Compression Ratio Calculator gives a result of 10.0909.

Domande Frequenti

Why does a higher compression ratio matter?
Higher compression generally improves thermal efficiency and power, but also raises the risk of knock (pre-ignition), which is why high-compression engines often require higher-octane fuel.
What is clearance volume?
The volume left in the combustion chamber above the piston when it's at the very top of its stroke (top dead center).
What inputs does the Compression Ratio Calculator need?
You'll need to provide: Swept volume (cc), Clearance volume (cc). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Compression Ratio Calculator?
The Compression Ratio Calculator applies the formula exactly as calculated — Compression ratio = (swept volume + clearance volume) / clearance volume, where swept volume is the cylinder volume displaced by the piston stroke and clearance volume is what remains at top dead center. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Compression Ratio Calculator free to use?
Yes, the Compression Ratio Calculator is completely free, requires no signup, and runs instantly in your browser.

Informazioni su Calcolatore Rapporto di Compressione

The Compression Ratio Calculator uses a real, verifiable formula — Compression ratio = (swept volume + clearance volume) / clearance volume, where swept volume is the cylinder volume displaced by the piston stroke and clearance volume is what remains at top dead center. — so results are accurate every time, not an approximation.