Tire Pressure Calculator

1. Total system weight

Pounds Kilograms

Rider weight Bike weight Gear and carried weight

2. Tires and terrain

Measured front tire width (mm) Measure the inflated tire at its widest point when possible. Measured rear tire width (mm) Measure the inflated tire at its widest point when possible. Primary riding surface Tire setup

3. Weight distribution Weight over the front wheel: 46%

Typical starting points by riding style (front / rear)

Selected front / rear distribution: 46% / 54%. Use this as a starting estimate; bike fit, riding position, luggage, and terrain can change the actual load.

Safety limits

Enter the lower maximum and higher minimum specified by your tire and rim manufacturers.

Rim type Minimum pressure (PSI, optional) Front maximum (PSI, optional) Rear maximum (PSI, optional)

Method and sources

The model scales pressure by total system weight and measured tire width, then adjusts for front/rear load, riding surface, and tube setup. It is independently implemented and benchmarked against published manufacturer guidance.

Tire pressure calculator

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