Swim Time Converter
Convert swim times between SCY (Short Course Yards), SCM (Short Course Meters) and LCM (Long Course Meters) instantly. Pick your stroke and event distance for a more accurate, empirical conversion, fine-tune the turn advantage, and optionally adjust for altitude or relay starts — everything is calculated right here in your browser, nothing is uploaded.
SCY → LCM
0:00.00
Converted pace / 100
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Original pace / 100
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Quick Reference: 100m / 100y Conversion Examples
Example conversions at common 100-distance times, by stroke. Use the calculator above for your own time, stroke, distance and adjustments.
| Stroke | SCY | SCM | LCM |
|---|---|---|---|
| Freestyle | 50.00 | 52.00 | 55.50 |
| Backstroke | 55.00 | 56.65 | 1:00.50 |
| Breaststroke | 1:00.00 | 1:03.00 | 1:07.20 |
| Butterfly | 53.00 | 55.12 | 58.83 |
| Individual Medley | 57.00 | 59.39 | 1:03.38 |
Frequently Asked Questions
This tool uses stroke- and distance-specific empirical factors rather than one fixed multiplier, which gets you much closer to real results than a flat conversion. It is still an estimate and is not an official federation-sanctioned conversion.
No. The entire conversion runs locally in your browser using JavaScript — nothing about your time, stroke, or event is uploaded anywhere.
Yes, tick "This is a relay leg time" to apply a flying-start adjustment on top of the course conversion.
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