CALCULATOR · CHAIN

Roller Chain Center Distance & Link Count Calculator

Enter sprocket tooth counts and desired center distance to calculate the required number of chain links (rounded to even) and the actual center distance.

Standard JIS B 1801 Links Even
HOW-TO How to Calculate Roller Chain Links and Center Distance +
  1. Enter the chain number, driver and driven tooth counts, and desired center distance.
  2. The required number of links (rounded to even) and actual center distance are displayed in real time.

Result

Number of Links (Even)
— links
Actual Center Distance
— mm
Error (ΔC)
— mm
Driver Pitch Circle Diameter (d1)
— mm
Driven Pitch Circle Diameter (d2)
— mm
Speed Ratio
—
Tags
Sprocket Power Transmission
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INPUTS
Roller Chain Center Distance & Link Count Calculator

Select standard chain per JIS B 1802-1989

9–150 teeth
teeth

9–150 teeth

9–150 teeth
teeth

9–150 teeth

30–5000 mm
mm

Chain links must be an even number, so the actual center distance will differ slightly from the input value (30–5000 mm)