CONVERSION FORMULAS

(Note: Results will be approximations! Conversions are rarely completely accurate due to differences between swimmers in their use of walls, onset of fatigue, confidence, etc.  Depending on the swimmer, racing in a 25-yard pool can be very different than racing in a 50-meter pool. )

 

Short Course Yards to Long Course Meters

Stroke

---------------50's---------------

Butterfly

(Meters Time) = (Yards Time) x 1.11 + 0.7 sec

Backstroke

(Meters Time) = (Yards Time) x 1.11 + 0.6 sec

Breaststroke

(Meters Time) = (Yards Time) x 1.11 + 1.0 sec

Freestyle

(Meters Time) = (Yards Time) x 1.11 + 0.8 sec

Stroke

---------------100's---------------

Butterfly

(Meters Time) = (Yards Time) x 1.11 + 1.4 sec

Backstroke

(Meters Time) = (Yards Time) x 1.11 + 1.2 sec

Breaststroke

(Meters Time) = (Yards Time) x 1.11 + 2.0 sec

Freestyle

(Meters Time) = (Yards Time) x 1.11 + 1.6 sec

 

Stroke

---------------200's---------------

Butterfly

(Meters Time) = (Yards Time) x 1.11 + 2.8 sec

Backstroke

(Meters Time) = (Yards Time) x 1.11 + 2.4 sec

Breaststroke

(Meters Time) = (Yards Time) x 1.11 + 4.0 sec

Freestyle

(Meters Time) = (Yards Time) x 1.11 + 3.2 sec

Ind. Medley

(Meters Time) = (Yards Time) x 1.11 + 3.2 sec

 

Stroke

---------------400's---------------

Ind. Medley

(Meters Time) = (Yards Time) x 1.11 + 6.4 sec

(Short Course Yards to Short Course Meter: Multiply by 1.11)

 

 

Long Course Meters to Short Course Yards

Stroke

---------------50's---------------

Butterfly

(Yards Time) = (Meters Time - 0.7 Sec) / 1.11

Backstroke

(Yards Time) = (Meters Time - 0.6 Sec) / 1.11

Breaststroke

(Yards Time) = (Meters Time - 1.0 Sec) / 1.11

Freestyle

(Yards Time) = (Meters Time - 0.8 Sec) / 1.11

Stroke

---------------100's---------------

Butterfly

(Yards Time) = (Meters Time - 1.4 Sec) / 1.11

Backstroke

(Yards Time) = (Meters Time - 1.2 Sec) / 1.11

Breaststroke

(Yards Time) = (Meters Time - 2.0 Sec) / 1.11

Freestyle

(Yards Time) = (Meters Time - 1.6 Sec) / 1.11

 

 

Stroke

---------------200's---------------

Butterfly

(Yards Time) = (Meters Time - 2.8 Sec) / 1.11

Backstroke

(Yards Time) = (Meters Time - 2.4 Sec) / 1.11

Breaststroke

(Yards Time) = (Meters Time - 4.0 Sec) / 1.11

Freestyle

(Yards Time) = (Meters Time - 3.2 Sec) / 1.11

Ind. Medley

(Yards Time) = (Meters Time - 3.2 Sec) / 1.11

Stroke

---------------400's---------------

Ind. Medley

(Yards Time) = (Meters Time - 6.4 Sec) / 1.11

(Long Course Meters to Short Course Meters: Just subtract seconds)

 

 

Conversion For Distance Events

400/800 meters (long course) converts to 500/1000 yards by dividing meter time by .8925.

1500 meters (long course) converts to 1650 yards by dividing meter time by 1.02.

500/1000 yards converts to 400/800 meters (long course) by multiplying by .8925.

1650 yards converts to 1500 meters (long course) by multiplying by 1.02.

To convert Long Course Meters to Short Course Meters use the following formulas for distance events:

400 freestyle: long course time - 6.4 seconds = short course meters time.

800 freestyle: long course time - 12.8 seconds = short course meters time.

1500 freestyle: long course time - 24.0 seconds = short course meters time.