What Size Bike Do I Need?
Height, inseam, riding style — the exact frame size to buy.
- Free, no sign-up, works on any device.
- Instant results with a clear explanation of each step.
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
What Size Bike Do I Need?
Height, inseam, riding style — the exact frame size to buy.
Your body
e.g. 5'10" = 70 inches
Book-between-legs method: stand against a wall, pull a book up to your crotch, measure from the floor.
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