Swimming World Time Converter These factors will allow you to convert metric times achieved in a 25-meter or 50-meter pool to an equivalent time for a 25-yard pool, or vice-versa. Gender Select Male Female Event Select 50 Freestyle 100 Freestyle 200 Freestyle 400/500 Freestyle 800/1000 Freestyle 1500/1650 Freestyle 50 Backstroke 100 Backstroke 200 Backstroke 50 Breaststroke 100 Breaststroke 200 Breaststroke 50 Butterfly 100 Butterfly 200 Butterfly 200 Ind. Medley 400 Ind. Medley Time : . (Min:Sec.Hund) From Select Course Long Course (50-Meters) Short Course (25-Meters) Short Course (25-Yards) To Select Course Long Course (50-Meters) Short Course (25-Meters) Short Course (25-Yards)