Bike Tire Pressure Calculator

The right bike tire pressure in seconds: a front and rear recommendation based on your weight, your bike, your tire size and the surface you ride. Free, 100% offline, no ads, no account. PERSONAL, NOT A GENERIC CHART Tire pressure charts assume an average rider on an average road. This calculator uses your numbers: • Your weight and your bike's weight (kg or lbs) • Wheel size and tire size, with different front and rear tires if you run them • Tubeless or tubes • Riding surface: smooth road, rough road, gravel, technical trail, or mud, sand and snow The result is a separate front and rear pressure, shown in psi and bar, ready to dial in with a floor pump. EVERY KIND OF BIKE • Road, gravel, cyclocross, touring and commuter bikes • Mountain bikes from XC to enduro, including modern 2.4" and wider tires, and plus tires up to 3.0" • Fat bikes up to 26 x 4.8 • Folding bikes (Brompton, Dahon, Tern), BMX, recumbents and kids' bikes on 16" and 20" wheels Seven wheel sizes from 16" to 29" / 700C and more than 110 tire sizes, each labeled in both ISO (ETRTO) and inch formats, so you can match what is printed on your sidewall. RIDER AND BIKE PROFILES Save yourself and each of your bikes, then switch between them in one tap. Two riders sharing a garage full of road, gravel and mountain bikes? Every setup is one tap away. The app also remembers your last inputs, so it opens ready to use. SENSIBLE NUMBERS BY DESIGN The guardrails are built into the math. Surface and tubeless adjustments keep gravel and mountain bike pressures realistic, minimum pressures guard against pinch flats, and tires for small wheels follow the pressure ranges printed by their manufacturers. Treat the result as a great starting point and fine-tune a few psi to your own feel and conditions. PRIVATE BY DESIGN • No ads • No tracking, no analytics • No account, no sign-in • No internet connection needed, everything runs on your iPhone or iPad • No permissions requested Trusted by more than 100,000 riders since 2020. HOW IT WORKS 1. Enter your weight and your bike's weight 2. Pick your wheel size and tire size (front and rear separately if they differ) 3. Choose your riding surface and whether you run tubeless 4. Tap Calculate Your front and rear pressures appear instantly, in psi and bar. MADE BY A CYCLIST One rider, one app, and reviews that shape every update: the surface selector, saved bikes, wider MTB tires and small wheels all came from rider feedback. Something missing? Tap Send Feedback in the app and tell me. Happy riding!