Home/Swim times

Swim Time Converter

Convert between yards, short course meters and long course meters using factors measured from real age-group swimmers.

Convert a timeMeasured from real swimmers

Type a time as 1:02.45 or 62.45

From

Swimmer

Our converted time—

Standard (Hy-Tek) result—

Why this gives a different answer

Nearly every swim time converter uses the same decades-old factors, which come from meet management software. Those factors were derived from adult swimmers, and they apply a single multiplier to every stroke.

We measured the ratios instead. Same swimmers, both course types, same age, thousands of age-group athletes, median ratio per stroke, distance and gender. The result does not match the convention, and the gap is not random.

Stroke changes the answer Breaststroke and backstroke convert noticeably worse than freestyle and butterfly. A flat factor gives a breaststroker a number that is nearly three seconds optimistic on a single 100.

Distance events are the worst case A 500 yard free becomes a 400 meter free, and on a 5:30 the conventional factor and the measured one land more than eleven seconds apart. That can decide whether a swimmer appears to hold a cut.

Use a converted time for planning and comparison. Meet entry and qualifying always use the time as actually swum, and if a coach asks for long course, give them a real long course time.

Read the full analysis, with the measured factors → USA Swimming motivational standards, by age → What college rosters actually swim →

Conversion estimates only, not official times. Check your LSC or meet rules before relying on a converted time.

Time standards

Two different ladders, often confused: the age-group standards every USA Swimming family climbs, and what college rosters actually swim.

Ages 10-18 · B to AAAA

USA Swimming Motivational Standards

The official 2025-2028 tables for every single age, gender and course — readable tables instead of a PDF, with every age one click away.

D1 / D2 / D3 / NAIA · by event

College Recruiting Standards

What swimmers on current college rosters actually swim, measured from real race results — best, middle and depth for every division and event.