Calculate the perfect gear ratio for your bicycle. Enter your chainring teeth, cog teeth, and wheel size to find your ideal gear ratio and gear inches. Suitable for all types of bikes including fixed gear, single speed, and multi-speed bicycles.
Gear Ratio
2.94
Gear Inches
81.06
Understanding Bicycle Gear Ratios
Gear ratio is the relationship between your front chainring and rear cog teeth count. A higher ratio (more teeth in front, fewer in back) means harder pedaling but faster top speed. A lower ratio makes pedaling easier but reduces top speed.
What are Gear Inches?
Gear inches help compare gearing across different wheel sizes. It represents the distance your bike travels for one complete pedal revolution. Higher gear inches mean you'll cover more distance per pedal stroke.