The time of 1.00.23 for 100m Backstroke swum in a 25m pool is converted to 1.01.5 in a 50m pool.

Pool Length where time was achieved

The time achieved was

 in the format of MM.SS.HH (Minutes.Seconds.Hundreths)

Pool Length to convert time to

Distance

Stroke

Using the 2013 Edition of the conversion DLL provided by SPORTSYSTEMS