Seconds or M:SS.xx. Example: 10.21 or 1:52.30.

Try an example

FAT comparison

Enter a time above, or load an example. Your comparison and calculation steps appear here.

How this is calculated

Compare a 400m mark

Round the manual mark upward to the next tenth (an exact tenth stays unchanged), then add the selected offset.

NFHS guidance adds 0.24 seconds for every distance. WA combined-event scoring uses 0.24 below 400m, 0.14 at 400m, and no offset above 400m. These conventions serve different purposes. Confirm which one the meet accepts.

A converted time does not replace an official FAT result or establish a record. Stopwatch reaction error varies; these offsets do not measure an individual timer's error. Field events and approach runs are outside this comparison.

Sources: NFHS conversion guidance (2014) and WA combined-event scoring tables, page 25. Check the current meet rulebook and entry instructions.