Bike Tire Pressure Calculator
Estimate road bike tyre pressure from weight, tyre width, and surface.
Quick answer: enter your details below and click Estimate Pressure — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Enter rider-plus-bike weight.
- Enter tyre width in millimetres.
- Pick the surface and click Estimate Pressure.
About this tool
Enter total rider-plus-bike weight, tyre width, and surface type. The tool estimates a starting pressure with a simple rule that lowers pressure for wider tyres and rougher surfaces. This is a starting estimate, not a substitute for the tyre maker's limits or your own feel.
Frequently asked questions
Should front and rear match?
Often the rear runs a little higher because it carries more weight, but this tool gives one starting figure.
Does it replace the tyre rating?
No. Never exceed the maximum printed on the tyre sidewall.