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 +
- Enter the chain number, driver and driven tooth counts, and desired center distance.
- 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
- —
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)
FEEDBACK
BUG · REQUEST
0 / 500
- ➰ V-Belt Length & Center Distance Calculator Calculate the recommended belt designation, actual center distance, wrap angle and belt speed from the belt type and effective pulley diameters
- 🪐 Planetary Gear Tooth Count & Assembly Calculator Calculate the ring gear tooth count and reduction ratio from the sun/planet tooth counts and number of planets, and check assembly conditions and interference (with CAD placement angles)
- 📐 GT2 Pulley Center Distance Calculator Calculate the center distance between GT2 pulleys from the belt length