⌛
🏃
Calculate Race Splits
Add or subtract running, swimming, or cycling lap times for training analysis.
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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?
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3
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Get your result instantly. Nothing is stored after you leave the page — complete privacy.
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