How fast or slow is a seal?

Seals are generally agile swimmers, with most species capable of reaching speeds of 15 to 25 miles per hour (24 to 40 kilometers per hour) in short bursts when swimming. However, their cruising speed is typically around 3 to 6 miles per hour (5 to 10 kilometers per hour) during long swims. On land, seals move much slower, often waddling or sliding on their bellies. Overall, their speed varies by species and the environment they are in.