Our Cycling Speed Calculator helps cyclists understand the relationship between their gear ratio, cadence (RPM), and speed. Whether you're a road cyclist looking to optimize for sprints or a mountain biker tuning for climbs, this tool provides accurate speed estimates based on your specific bike setup and tire size.
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Cycling Speed Calculator
Calculate your cycling speed based on gear ratio, cadence, and tire size.
Bike Setup
Performance
Typical cadence ranges from 60-100 RPM for recreational cyclists.
Speed Estimates
33.4
km/h
20.8
mph
2.94
Ratio
78"
Gear Inches
6.19m
Dev (m)
Speed assumes constant pedaling at 90 RPM.
Cycling Speed & Gear Calculator
Calculate your cycling speed based on gear ratio, cadence, and tire size. Optimize your bike setup for speed or climbing.
1
Bike Setup
Enter your chainring and cog teeth count.
2
Tire Selection
Choose your tire size or enter custom circumference.
3
Set Cadence
Input your pedaling cadence (RPM) to see the speed.
Key Features
Speed Calculation
Estimate speed in km/h and mph from cadence.
Gear Ratio Analysis
See your gear inches and development meters.
Tire Size Database
Select from common road and MTB tire sizes.
Frequently Asked Questions
Most cyclists aim for 80-100 RPM. Lower cadence requires more force, while higher cadence relies more on cardiovascular fitness.
Gear inches represent the effective diameter of your drive wheel. Higher numbers mean harder gears (more speed), lower numbers mean easier gears (climbing).
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