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SWOLF calculator

Calculate your SWOLF score from time and stroke count for one pool length.

Your result

Complete the fields and calculate.

Calculation method and formula

Time for one pool length [Sek.] + Strokes for one pool length

Understand the inputs

Time for one pool length
Unit: Sek.. Minimum 0.1. Use a measured value or your own assumption.
Strokes for one pool length
Minimum 1. Whole number.

Assumptions and limitations

Compare only with equal pool length, stroke and counting method. Individual arm strokes differ from full cycles. Lower SWOLF alone does not prove better technique.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Time for one pool length
30 Sek.
Strokes for one pool length
15
Example result45 SWOLF points

SWOLF is time in seconds plus strokes for one pool length. Compare scores only under similar conditions.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does SWOLF calculator work?+

Time for one pool length [Sek.] + Strokes for one pool length. Compare only with equal pool length, stroke and counting method. Individual arm strokes differ from full cycles. Lower SWOLF alone does not prove better technique.

What assumptions should I consider for this result?+

Compare only with equal pool length, stroke and counting method. Individual arm strokes differ from full cycles. Lower SWOLF alone does not prove better technique. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Prices, measurements and model assumptions determine how well the result represents your situation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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