Swimming Pace Calculator

Find your swimming pace per 100 m or 100 yd from a distance and time, plus your average speed — ideal for pool sets and open water. Calculates in your browser.

Pace per 100 m

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Speed-
Pace per 50-
Total time-

Show the math

Swim pace is your time spread over each 100 of distance:

pace = time ÷ (distance ÷ 100)

Pace per 100 is the standard swimming benchmark. Knowing it lets you set realistic send-off times for interval sets, for example, holding 1:45 per 100 m on a 2:00 send-off gives 15 seconds rest.

What this does

A swimming pace calculator finds your pace per 100 m or 100 yd from a distance and time, plus your average speed, ideal for pool sets and open water.

How it works

Your total time is divided by the number of 100 m (or 100 yd) segments in the distance, giving a pace per 100. The tool also shows average speed.

Pace per 100 = time ÷ (distance ÷ 100)

How to use it

  1. Enter the distance you swam.
  2. Enter your total time.
  3. Choose metres or yards.
  4. Read your pace per 100 and average speed.

Understanding your result

Knowing your per-100 pace lets you set realistic send-off times and target splits for interval sets in training.

Example

Swimming 1,500 m in 30 minutes is a pace of 2:00 per 100 m.

Sources & methodology

Last updated .

Frequently asked questions

How is swim pace calculated?

Your total time is divided by the number of 100 m (or 100 yd) segments in the distance, giving a pace per 100. The tool also shows your average speed.

Can I use yards?

Yes. Switch units to get pace per 100 yards, which suits short-course-yard pools common in the US.

How do I use pace for sets?

Knowing your per-100 pace lets you set realistic send-off times and target splits for interval sets in training.

Is my data stored?

No. Everything is calculated locally in your browser.