Wheel size and gearing calculator

Tyre Size

Model Chassis Wheel
  Tyre #1   Tyre #2   Difference
   /  x ---  /  x ---  
Diameter:
Circumference:

---
---

Gearing

Units   Tyre #1 Tyre #2 Difference
KM/H Circumference:  
MPH Final drive: :1 :1  
RPM at  km/h
Redline:   Calculate top speed
Transmission:   km/h km/h km/h
Gear 1: :1  
Gear 2: :1  
Gear 3: :1  
Gear 4: :1  
Gear 5: :1  
Gear 6: :1  
Dynamic Graph Generate graph: Generate graph for tyre #1 Generate graph for tyre #2 Generate graph for both tyres
Speedo drive gear: Calculate speedo drive gear for tyre #1 Calculate speedo drive gear for tyre #2