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Sports Calculator
⏱ Pace
🏁 Triathlon
⚡ Power
📈 Predict
🏊 Swim
🚴 Bike
🏃 Run
Swim Pace Calculator
Time → Pace
Pace → Time
Distance
Unit
km
metres
Pace Unit
min / 100 m
min / 50 m
Total Time (hh : mm : ss)
Pace (mm : ss)
:
Enter values above
Bike Speed Calculator
Time → Speed
Speed → Time
Distance
Unit
km
miles
Total Time (hh : mm : ss)
Speed
km/h
mph
Enter values above
Run Pace Calculator
Time → Pace
Pace → Time
Race / Distance
5 km
10 km
Half
Marathon
Distance
Pace Unit
min / km
min / mile
Total Time (hh : mm : ss)
Pace (mm : ss)
:
Enter values above
Race Distance
Sprint
Olympic
70.3
Ironman
Custom
Swim (km)
Bike (km)
Run (km)
Paces & Transitions
🏊 Swim Pace (mm:ss per 100m)
:
T1 — Swim to Bike (mm:ss)
:
🚴 Bike Speed (km/h)
T2 — Bike to Run (mm:ss)
:
🏃 Run Pace (mm:ss per km)
:
Projected Finish
FTP & Training Zones
FTP (watts)
Body Weight (kg)
W/kg
Zone
Name
% FTP
Watts
Flat Speed Estimator
Power (watts)
Rider + Bike (kg)
Position / CdA
Triathlon / TT bars (CdA ≈ 0.24)
Road drops (CdA ≈ 0.32)
Upright / hoods (CdA ≈ 0.40)
Required Power for Target Speed
Target Speed (km/h)
Rider + Bike (kg)
Position / CdA
Triathlon / TT bars (CdA ≈ 0.24)
Road drops (CdA ≈ 0.32)
Upright / hoods (CdA ≈ 0.40)
Race Time Predictor — Run
Predict finish time for a target race based on a recent result. Uses the Riegel formula.
Known Race Distance (km)
5k
10k
Half
Full
Known Time (hh : mm : ss)
Target Race Distance (km)
5k
10k
Half
Full
Enter a known result above