Gearing Calculator
Gearing
Wheel Size
700×23
700×25
700×28
700×30
700×32
700×35
700×38
700×40
700×42
700×45
26×1.0
26×1.25
26×1.5
26×1.75
26×2.0
26×2.25
Chainring
−
+
Cog
−
+
Ratio
—
Gear Inches
—
Circ. (mm)
—
Reverse Search
Target Inches
−
+
Tap a row to load it above.
Speed / Cadence
Cadence (rpm)
−
+
Speed (km/h)
−
+
Enter either field and the other will calculate.