How many laps make a mile in swimming? It’s a common question – and the answer depends on your pool size, and what defines a “mile” in competitive pool swimming. In this guide, Coach Dan Daly breaks down the difference between a land mile, a swimming mile, and how to convert those into laps in 25-yard, 25-meter, and 50-meter pools. You’ll also learn how to track your laps more effectively using swim watches and lap counters, plus get a sample mile swim workout. Whether you’re a beginner, triathlete, or distance swimmer, this article gives you the clarity you need to train smarter and swim stronger - length by length, lap by lap.