Swim Converter +

Swim Converter turns one pool time into the other two courses. Pick the event, enter a time in SCY, LCM, or SCM, and tap Convert. You get yards, short-course meters, and long-course meters in one place — including 400/500, 800/1000, and 1500/1650 free. Events cover free, back, breast, fly, and IM. 100 IM has no long-course conversion, same as the rulebook. Need a sea-level equivalent from a high-altitude meet? Turn on altitude adjustment. Times stay on your phone. No account. No signup. Conversions use standard course factors (the same family as Hy-Tek / USA Swimming tables). They are estimates for training and comparison, not official meet results.