Sports & Performance calculators
Estimate pace, training loads, cycling setup, and sport performance measures.
Tool map
What are you trying to work out?
Running & endurance
5Pace, distance, race, and endurance estimates.
Half Marathon Pace Calculator · Pace Converter Calculator · Running Pace Calculator
Cycling
2Gearing, cadence, speed, and cycling power.
Bicycle Gear Calculator · Bicycle Power Calculator
Strength & training
1Strength, load, and workout planning.
Reaction Time Calculator
More sports
5Additional sport and performance tools.
Golf Handicap Calculator · Shot Put Ideal-Flight Scenario Calculator · Vertical Jump Calculator
A useful place to start
Choose a sport-specific tool when available; otherwise start with pace, power, or training-load tools based on the result you need.
Bicycle Gear Calculator
Calculate bicycle gear ratio, gear inches, development, and cadence-based speed from tooth counts and a measured loaded wheel rollout.
Bicycle Power Calculator
Calculate a mechanical-power scenario from measured motion and explicit resistance, drag, density, wind, and efficiency inputs.
Half Marathon Pace Calculator
Calculate half marathon pace from a target finish time, including mile and kilometer paces and even cumulative splits.
Golf Handicap Calculator
Estimate a golf handicap index from scores, course ratings, and slope ratings using the exact differential averaging logic in the form.
Pace Converter Calculator
Convert pace and speed between min/km, min/mile, km/h, and mph using the exact international mile conversion.
Running Pace Calculator
Calculate running pace, elapsed time, or distance in miles or kilometers using exact unit conversion.
Reaction Time Calculator
Measure browser-observed latency for a visual prompt and summarize repeated trials.
Shot Put Ideal-Flight Scenario Calculator
Calculate an ideal no-air-resistance projectile scenario from user-entered speed, angle, and release height. Results are not actual or official shot-put distances.