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Giriş

Gear Ratio Calculator — Ratio and output RPM from tooth counts. Enter Driver gear teeth, Driven gear teeth, Input RPM to get an instant, accurate result.

Formül

Gear ratio = driven teeth / driver teeth. Output RPM = input RPM / gear ratio.

Adım adım

Enter the Driver gear teeth.
Enter the Driven gear teeth.
Enter the Input RPM.
Click Calculate to see your result instantly.

Gerçek dünya örneği

Example: With Driver gear teeth = 20, Driven gear teeth = 40, Input RPM = 1000, the Gear Ratio Calculator gives Ratio: 2, Output Rpm: 500.

Sıkça Sorulan Sorular

What does a ratio greater than 1 mean?

The output shaft turns slower than the input (a reduction), trading speed for torque.

Does this account for gear efficiency losses?

No, it's an ideal mechanical ratio without friction or efficiency losses.

What inputs does the Gear Ratio Calculator need?

You'll need to provide: Driver gear teeth, Driven gear teeth, Input RPM. 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 Gear Ratio Calculator?

The Gear Ratio Calculator applies the formula exactly as calculated — Gear ratio = driven teeth / driver teeth. Output RPM = input RPM / gear ratio. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the Gear Ratio Calculator free to use?

Yes, the Gear Ratio Calculator is completely free, requires no signup, and runs instantly in your browser.