Score your swim.
Find your target.

Size
Enter an age from 18 to 130.
Gender
Course
Event
Time
: .
Enter minutes, seconds, and hundredths.
Developer tools - data status &test cases
Loading OutSwim data...
Forward - built-in test cases

Extracted from the live formula in Jim's spreadsheet and verified against an independent Python implementation.

Inverse - round-trip test

Feed a score we know the time for; it should return that exact time.

Diagnostic info
Waiting for data...