SWOLF Calculator

Measure your swimming efficiency by combining your stroke count and time for a single lap

About SWOLF

SWOLF (a blend of "swim" and "golf") is a measure of swimming efficiency. Like golf, a lower score is better. You add the number of strokes you take for a lap to the time in seconds it takes to swim that lap. Improving either your stroke count or your speed lowers your SWOLF score.

Formula

  • SWOLF = Strokes + Time (seconds)

Tips to Improve

  • Lengthen your stroke to cover more distance per pull
  • Improve your turns and streamline off the wall
  • Track SWOLF over time to monitor progress

Note: SWOLF is a relative efficiency metric and is most useful when compared against your own results over time and at a consistent pool length. These calculations assume your stroke count and lap time are accurate.