Which method should I use?

The Hamley method (inseam x 1.09) is most commonly used and measures from pedal axle to saddle top. The LeMond method (inseam x 0.883) measures from bottom bracket centre to saddle top. Both give similar results.

How is saddle height measured?

Saddle height is measured from the centre of the bottom bracket axle to the top of the saddle, along the seat tube. Some methods measure from the pedal axle at its lowest point.

What happens if saddle is too high?

A saddle that is too high causes rocking hips, knee pain (back of knee), numbness, and reduced power. It is a common cause of injury.

What happens if saddle is too low?

A saddle that is too low causes knee pain (front of knee), reduced power output, and inefficient pedalling. It puts excessive strain on the quadriceps.

BikeCalcs

Saddle Height Calculator — Optimal Seat Position

Calculate your optimal saddle height from inseam measurement.

Inseam Length

Method

How We Calculate This

Saddle Height Methods

Hamley (1967): Saddle Height = Inseam x 1.09 (measured from pedal axle to saddle top with crank at 6 o'clock)
LeMond: Saddle Height = Inseam x 0.883 (measured from BB centre to saddle top along seat tube)
Heel method: Saddle Height = Inseam x 1.065 (rider should just reach pedal at bottom with heel)

All methods provide a starting point. Fine-tune by 5-10 mm based on comfort and knee angle (25-30 degrees of bend at bottom of pedal stroke).

Frequently Asked Questions

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Last updated: 2025-02-20

All calculations are estimates. Always verify results and consult a professional bike fitter where appropriate.