Scientific Tire Pressure Engineering

Perfect Tire Pressure.
Zero Rolling Resistance.

Stop over-inflating and bouncing off the road. Bike Pressure Calc Pro uses real-world cycling physics to calculate the exact front and rear PSI/Bar for your weight, rim width, casing, and road conditions.

Download on iOS Explore Calculator
Front / Rear Split
Tubeless & Clincher
100% Offline Ready
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Front: 3.8 Bar

55 PSI • Wet Asphalt Grip

Bike Pressure Calc Pro app screenshot
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Rear: 4.1 Bar

59.5 PSI • Optimal Power Transfer

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Weight Distribution

Accounts for rider, bike & gear payload

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Rim & Casing Physics

Internal rim width & tire compound modeling

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Surface & Weather

Fine-tuned for rain, cold, cobblestones & gravel

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Instant Recalculation

Slide any parameter and watch PSI update live

Engineering Engine

The Science Behind Faster, Safer & Smoother Rides

High tire pressure causes impedance loss on uneven asphalt. Under-inflation increases pinch-flat risk and sluggish steering. Bike Pressure Calc Pro computes the exact sweet spot for optimal tire deflection.

Dedicated Front vs. Rear Weight Split

Since rear wheels carry approximately 55-60% of total payload, rear pressure must be higher to balance rolling efficiency and cornering grip.

Tubeless, TPU & Latex Tube Optimization

Choose your tire setup (Tubeless, Standard Butyl, Lightweight TPU, or Latex) to automatically dial in safe bead seat pressures.

Surface Condition Coefficients

Instantly adapt pressures whether you're riding smooth velodrome wood, rough chip-seal asphalt, coarse gravel, or wet cobblestones.

Calculate Your Setup
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Pressure Calculation

75kg Rider • 28mm Tubeless • 21mm Rim
Optimum Deflection
Front Wheel
3.85 Bar
55.8 PSI
Rear Wheel
4.15 Bar
60.2 PSI
Surface Adjustment: Smooth to Average Asphalt (Dry, 20°C). Estimated rolling wattage savings: ~7 Watts.
Download Free on App Store
Simple & Fast

Calculate in 4 Quick Steps

Designed for fast pump adjustments before rolling out the door.

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1. Select Bike Type

Choose Road, TT/Triathlon, Gravel, Mountain, City/Commuter, or E-Bike configurations.

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2. Enter Total Weight

Input your body weight and bike weight in kilograms or pounds with optional luggage cargo.

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3. Pick Rim & Tire Specs

Set nominal tire width (e.g. 25mm, 28mm, 40mm, 2.3") and internal rim width.

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4. Inflate & Ride

Get instant front and rear Bar and PSI targets tailored for today's weather and road surface.

Feature Suite

Built for Every Wheel, Rim & Surface

Everything you need to eliminate guesswork and pump with total confidence.

Core Feature
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Scientific Deflection Formula

Based on modern tire impedance physics research. Our calculation accounts for casing deflection under load to ensure minimum vibration fatigue without sacrificing acceleration snap.

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Wet Surface & Cold Compensation

Toggle wet conditions to automatically drop pressure for increased tire contact patch and safer cornering traction.

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Dual Unit Converter (Bar & PSI)

Seamlessly switch between Bar and PSI units with instant precision up to two decimal places.

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100% Offline Capability

Works anywhere in remote mountain passes, gravel trails, and overseas cycling camps with zero mobile signal.

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Tire Setup Profiles

Supports Tubeless, Clincher with Butyl tubes, ultra-light TPU tubes, and Latex inner tubes.

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Ad-Free Premium Option

Upgrade with a single purchase for a clean, distraction-free experience with lifetime access.

Disciplines

Perfect Pressure for Every Bike in Your Stable

Fine-tuned parameters for all cycling genres.

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Road Racing

Optimize 25mm - 30mm tubeless and clincher tires for maximum speed and road damping on smooth and rough tarmac.

Speed & Smooth Tarmac
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Gravel Grinders

Find the exact sweet spot for 38mm - 50mm tires to absorb washboards without bottoming out on hidden rocks.

Gravel & Multi-Surface
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MTB XC & Trail

Calculate low pressures (18-26 PSI) for high-volume 2.2" - 2.6" tires for maximum trail grip and braking control.

Trail Traction & Grip
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Time Trial & Aero

Match wheel rim profile and aero tire combos for maximum watt savings during solo efforts against the clock.

Aero Watt Efficiency
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E-Bikes & Commuters

Compensate for heavier motor and battery weights to prevent premature tire wear and rim strikes on city potholes.

Heavy Payload & Puncture Guard
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Bikepacking & Touring

Add loaded panniers and frame bag cargo weight to maintain agile handling and prevent pinch flats on long tours.

Touring & Cargo Weight
Simple Download

Ready to Ride Faster?

Download Bike Pressure Calc Pro for iOS and start riding with optimal pressure today.

Free Download

Full access to essential tire pressure calculations

$0 / free on App Store
  • Full tire pressure calculator
  • Front & rear pressure split
  • Road, Gravel, MTB & City bikes
  • Instant Bar & PSI conversion
Download on iOS
Premium Experience

Pro Ad-Free

Clean interface with no interruptions

Pro in-app upgrade
  • 100% Ad-free experience
  • Fastest possible interface loading
  • Direct support for independent development
  • All future tire algorithm updates included
Get on the App Store

Never Ride on Wrong Tire Pressure Again

Join cyclists around the globe and experience improved speed, grip, and comfort on every ride.

Download Bike Pressure Calc Pro