basic

SWOLF Swim Efficiency Score Calculator

SWOLF = strokes + seconds per length.

Calculates SWOLF = stroke count + time (seconds) for one pool length. Lower SWOLF indicates better swim efficiency. A competitive swimmer typically scores 30–40 for 25m.

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

Inputs

strokes
s
m

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

SWOLF = strokes + time(s)

In depth

Calculates SWOLF = stroke count + time (seconds) for one pool length. Lower SWOLF indicates better swim efficiency. A competitive swimmer typically scores 30–40 for 25m.