⌛
🏃
Calculate Race Splits
Add or subtract running, swimming, or cycling lap times for training analysis.
Ingen inloggning krävs
Formats: HH:MM:SS (e.g. 01:30:45) or HH:MM (e.g. 02:15)
Result
02:15:30
2h 15m 30s · 8130 seconds total
135.50
minutes
2.258
hours
8,130
seconds
Race Splits tips
🏃
For marathon training, calculate target paces — total time / planned splits.
💡
Sum repeated interval durations to verify your training session totals.
🎯
Use "Time between" for split analysis — how long from mile 13 to mile 20?
Så här fungerar det
1
Ange
Enter your data into the tool above. Everything stays local to your browser.
2
Bearbeta
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Ladda ner
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
Varför använda vårt?
✓Helt gratis — inga dolda kostnader, någonsin
✓Inget konto, e-post eller inloggning krävs
✓Filer lämnar aldrig din enhet
✓Inga filstorleksgränser överhuvudtaget
✓Inga vattenstämplar på någon utdata
Also check out…
⏰🍳🎬🍅
Calculate Work Hours Worked
Add up your hours across the day to log time spent
Cooking Time Math
Combine prep + cook times for recipes, or calculat
Video Timeline Calculations
Add up clip durations to plan a video timeline, or
Calculate Total Focused Time
Sum your Pomodoro sessions to track focused time p