// multi-utility computation suite · offline · instant · precise
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sci.swimming-SWOLF-efficiency Calculator
Calculates SWOLF score (strokes + lengths per 100 m) and swimming efficiency (Swim Efficiency Index) from lap time and stroke count. Lower SWOLF = more efficient swimming — elite pool swimmers achieve SWOLF < 35 for freestyle; recreational swimmers typically 50–70.
Inputs
Lap Distance M
Separation between two points or total path length. Check that units are consistent throughout the calculation.
Time S
Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
Stroke Count
Reference formula or conversion factor shown for context.
Results
SWOLF score
A numerical rating from the scoring model in use.
stroke length (m/stroke)
The computed linear length.
stroke rate (strokes/min)
The value at the specified point or condition.
pace per 100m (s)
Reference formula or conversion factor shown for context.
SWOLF = time + strokes
The computed duration or time value.
elite benchmark
Reference value for comparison — the industry standard, historical average, or target that this result is measured against.