TireCalc - Bike Pressure

Calculate optimal bike tire pressure — science-based, instant results, no account needed.

SCIENCE-BASED
TireCalc uses the Berto/Adams formula, the industry reference for tire pressure calculation. Separate front and rear results
based on your bike type's weight distribution. Transparent methodology — no black box.

ALL FACTORS CONSIDERED
• 4 bike types: Road, Gravel, MTB, Fat Bike
• 3 tire types: Clincher, Tubeless (−12%), Tubular (−5%)
• 2 rim types: Hooked & Hookless (ETRTO limit)
• 5 surfaces: Smooth to offroad
• Wet conditions: −5% pressure correction for better grip
• Weight from 40–150 kg / 88–330 lbs

SAFETY WARNINGS
• Hookless rim: Auto-capped at 5 bar (72 PSI) per ETRTO standard
• Pinch-flat risk: Warning when pressure is too low with inner tubes
• Safety limits per bike type

UNITS YOUR WAY
Pressure in bar or PSI, weight in kg or lbs — tire width auto-adjusts (mm/inches by bike type).

TIRECALC PRO (7-day free trial, then €2.99/year)
• All 4 bike types and 5 surfaces
• Unlock Tubeless, Tubular & Hookless
• Wet conditions (−5% pressure correction)
• Temperature compensation (pump pressure for any temperature)
• Pressure range (±8%)
• Unlimited bike profiles with quick switching
• Cancel anytime

Works offline. No account needed. Start right away.

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