This calculator will give the 60 foot, 330 foot and 660 foot incrementals from the elapsed time and speed of a quarter mile run.
| variable | description |
| elapsed time (ET) | time to run the full length of the quarter mile |
| speed | trap speed at the end of the quarter mile |
| 60 foot | time to the 60 foot mark |
| 330 foot | time to the 330 foot (also 1/4 track) |
| 660 foot | time to the 660 foot (also half track or 1/8 mile) |
| speed 660 foot | the speed at the 660 foot |
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