🏊 SWOLF Calculator

Enter lap time and stroke count to calculate per-lap SWOLF and your overall average SWOLF. Lower is more efficient.

Average SWOLF

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Average Pace (per 100m) — Laps Entered —

Enter at least one valid lap.

Lap Log

Lap	Time	Strokes	SWOLF

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GUIDE

Learn more

What Is SWOLF and Why It Matters

SWOLF (Swim Golf) is the sum of the time in seconds it takes to complete a lap plus the number of strokes taken during that lap. Like golf, a lower score is better — it rewards not just raw speed but how efficiently you move through the water with fewer strokes. For example, a 45-second lap with 20 strokes gives a SWOLF of 65, while a 40-second lap with 18 strokes gives 58, the more efficient swim. Most swim-tracking wearables (Garmin, Apple Watch) surface SWOLF by default precisely because it captures speed and efficiency in a single number. At the same pace, cutting stroke count improves SWOLF and conserves energy over longer distances.

How to Lower Your SWOLF Score

Lowering SWOLF while holding your pace steady comes down to increasing Distance Per Stroke (DPS). Practicing a high-elbow catch — keeping the wrist and elbow high during the catch phase — lets each stroke pull more water and travel farther. Body rotation (rolling the shoulders and hips together) generates propulsion without relying solely on arm strength. A tight streamline off the wall and consistent breathing timing also prevent extra, wasted strokes. Logging SWOLF over the same distance in every session lets you track efficiency gains objectively rather than guessing.

Frequently asked questions

What is a good SWOLF score?

In a 25m pool freestyle, recreational swimmers typically score 40-60, trained swimmers score in the 30s, and elite swimmers can reach the low 20s. Tracking your own trend over time matters more than the absolute number.

Does pool length (25m vs 50m) affect SWOLF comparisons?

Yes. A 50m pool has half the number of wall turns per distance, which can push SWOLF in a different direction than a 25m pool even at the same effort. Only compare SWOLF scores measured in the same pool length; use the pool-length selector here to keep your logs separated.

SWOLF vs pace — which matters more?

It depends on your goal. For races where raw speed decides the outcome, prioritize pace (time per 100m). For long-distance endurance training, SWOLF (efficiency) matters more since it reflects energy cost per lap. Tracking both together helps you build a stroke that is fast and efficient.