Directory Metric or Inch

Chain and Sprocket Calculator

Chain ⚙ Sprocket Calculator ▶ Chain Length ▶ Sprocket Centers▶ RPM & Gear Ratio ▶ Chain Speeds

Link Pitch (inches) or
Small Teeth Small RPM
Large Teeth

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Small Teeth Large Teeth
Chain Links Scale

The lower the chain rotations, the more frequently each chain link engages the same sprocket tooth, so the greater and more uneven the wear.

Tire Diameter on Large Sprocket

RPM Small

Set current entries as default.
Sprocket RPM Diagram

DON'T BREATH THE DUST If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks

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