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Calcimator

Swim Pacing Calculator

Calculate split times for any race distance based on your target pace per 100m, with negative split suggestions.

Inputs

sec
m

Results

Total Race Time

25:00

Total Time1,500 sec
Split per 50m50 sec
Split per 100m100 sec
Negative Split: 1st Half Pace101.5 sec/100m
Negative Split: 2nd Half Pace98.5 sec/100m
How to Use This Calculator
  1. Enter your Target Pace per 100m in seconds (e.g., 90 = 1:30 per 100m).
  2. Select your Race Distance from the dropdown.
  3. Review Total Race Time, Split per 50m, and Split per 100m.
  4. Check the Negative Split paces (slightly slower first half, faster second half) for race strategy.
  5. Scroll through the split table to preview your cumulative time at each distance marker.
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