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Baseball Reaction Time Calculator
A hitter’s reaction time is capped by how long the pitch is in the air. Enter the pitch speed and the mound distance and this calculator gives the time from release to home plate, the same time in milliseconds, and the speed that would take the same time from a 60 ft 6 in MLB mound. The formula is time = distance ÷ speed, with the speed converted to feet per second (1 mph = 1.4667 ft/s).
Example: a 90 mph fastball travels 132 ft/s. Over the full 60 ft 6 in that takes 60.5 ÷ 132 = 0.458 seconds. Pitchers let go of the ball several feet in front of the rubber, so with a 6 ft release extension the ball covers 54.5 ft in 0.413 s. A 70 mph pitch from a 46 ft Little League mound reaches the plate in 0.448 s, about the same time as a 92 mph pitch from 60 ft 6 in.
Two honest limits: a real pitch slows down on its way because of air drag, while radar guns and Statcast report the speed at release, so the real flight is a little longer than this constant-speed figure. And the batter cannot use the whole flight: the swing itself takes part of it, so the time left to recognise the pitch is shorter still.
Result and step-by-step working
That is 458 milliseconds for a 90 mph pitch over 60.5 ft
- Convert the speed to feet per second90 mph × 5,280 ÷ 3,600 = 132 ft/s
- Find the distance the ball travels60.5 ft (no extension entered) = 60.5 ft
- Divide distance by speed60.5 ÷ 132 = 0.458 s
| Mound distance | Time to plate at 90 mph |
|---|---|
| MLB, high school, college (60 ft 6 in) | 0.458 s |
| 54 ft | 0.409 s |
| 50 ft | 0.379 s |
| 46 ft (Little League) | 0.348 s |
| 40 ft | 0.303 s |
Time to the plate by pitch speed
Seconds for the ball to cover the full rubber-to-plate distance at a constant speed. The last column starts the clock 6 ft in front of the MLB rubber, a typical release point for a big-league pitcher (Statcast calls this distance extension).
| Speed | 60 ft 6 in | 54 ft | 50 ft | 46 ft | 60 ft 6 in, 6 ft ext. |
|---|---|---|---|---|---|
| 40 mph | 1.031 s | 0.920 s | 0.852 s | 0.784 s | 0.929 s |
| 45 mph | 0.917 s | 0.818 s | 0.758 s | 0.697 s | 0.826 s |
| 50 mph | 0.825 s | 0.736 s | 0.682 s | 0.627 s | 0.743 s |
| 55 mph | 0.750 s | 0.669 s | 0.620 s | 0.570 s | 0.676 s |
| 60 mph | 0.688 s | 0.614 s | 0.568 s | 0.523 s | 0.619 s |
| 65 mph | 0.635 s | 0.566 s | 0.524 s | 0.483 s | 0.572 s |
| 70 mph | 0.589 s | 0.526 s | 0.487 s | 0.448 s | 0.531 s |
| 75 mph | 0.550 s | 0.491 s | 0.455 s | 0.418 s | 0.495 s |
| 80 mph | 0.516 s | 0.460 s | 0.426 s | 0.392 s | 0.464 s |
| 85 mph | 0.485 s | 0.433 s | 0.401 s | 0.369 s | 0.437 s |
| 90 mph | 0.458 s | 0.409 s | 0.379 s | 0.348 s | 0.413 s |
| 95 mph | 0.434 s | 0.388 s | 0.359 s | 0.330 s | 0.391 s |
| 100 mph | 0.413 s | 0.368 s | 0.341 s | 0.314 s | 0.372 s |
| 105 mph | 0.393 s | 0.351 s | 0.325 s | 0.299 s | 0.354 s |
Frequently asked questions
- How long does a 90 mph fastball take to reach home plate?
- About 0.458 seconds over the full 60 ft 6 in, or about 0.413 seconds from a release point 6 ft in front of the rubber, at a constant 90 mph.
- How long does a 100 mph pitch take to get to the plate?
- 100 mph is 146.7 ft/s, so the full 60 ft 6 in takes 0.413 s and 54.5 ft (6 ft extension) takes 0.372 s.
- What is a 70 mph pitch from 46 feet equal to in the big leagues?
- It reaches the plate in 0.448 s. A pitch from 60 ft 6 in needs 92.1 mph to take the same time (70 × 60.5 ÷ 46).
- Why is the real time slightly longer than the calculator's?
- Pitch speeds are measured at release and the ball loses speed to air drag before it reaches the plate. The calculator keeps the speed constant, so treat its times as a close lower bound.
Last reviewed: October 15, 2026. Calculations run in your browser; nothing you enter is sent anywhere.