Pitch Speed Converter: MPH to km/h
Type a pitch speed in any unit and the other three fill in: miles per hour, kilometers per hour, meters per second and feet per second. Handy when a radar gun, a broadcast or a scouting report uses a different unit than you do.
Most U.S. radar guns read in mph, while many countries, including Japan and Korea, show pitch speed in km/h. This converts either way.
Result
96.6 km/h
60 mph = 96.6 km/h = 26.82 m/s = 88 ft/s
| Time to the plate at this speed | Seconds |
|---|---|
| 60 ft 6 in mound (55 ft release to plate) | 0.625 s |
| 46 ft Little League mound (41 ft release to plate) | 0.466 s |
Times assume the ball holds this speed the whole way and is let go about 5 ft in front of the rubber. Real pitches slow down a little, so treat them as estimates.
Comparing pitchers on different mounds? Convert their speed to a 60.5 ft equivalent.
Pitch speed calculator →Radar gun guide →How to measure pitch speed →
The formulas
All four units are tied together by exact factors from NIST's conversion tables:
- km/h = mph × 1.609344, and mph = km/h ÷ 1.609344
- m/s = mph × 0.44704, and m/s = km/h ÷ 3.6
- ft/s = mph × 22/15 (about 1.4667), since a mile is 5,280 ft and an hour is 3,600 s
Hand check: 90 mph × 1.609344 = 144.84 km/h. 90 × 0.44704 = 40.23 m/s. 90 × 22 ÷ 15 = 132 ft/s.
Pitch speed chart: 40–105 mph
Every 5 mph from a youth fastball up to the hardest throwers in the majors. Rounded to one decimal (two for m/s).
mph to km/h
| mph | km/h | m/s | ft/s |
|---|---|---|---|
| 40 mph | 64.4 | 17.88 | 58.7 |
| 45 mph | 72.4 | 20.12 | 66.0 |
| 50 mph | 80.5 | 22.35 | 73.3 |
| 55 mph | 88.5 | 24.59 | 80.7 |
| 60 mph | 96.6 | 26.82 | 88.0 |
| 65 mph | 104.6 | 29.06 | 95.3 |
| 70 mph | 112.7 | 31.29 | 102.7 |
| 75 mph | 120.7 | 33.53 | 110.0 |
| 80 mph | 128.7 | 35.76 | 117.3 |
| 85 mph | 136.8 | 38.00 | 124.7 |
| 90 mph | 144.8 | 40.23 | 132.0 |
| 95 mph | 152.9 | 42.47 | 139.3 |
| 100 mph | 160.9 | 44.70 | 146.7 |
| 105 mph | 169.0 | 46.94 | 154.0 |
km/h to mph
| km/h | mph |
|---|---|
| 60 km/h | 37.3 |
| 70 km/h | 43.5 |
| 80 km/h | 49.7 |
| 90 km/h | 55.9 |
| 100 km/h | 62.1 |
| 110 km/h | 68.4 |
| 120 km/h | 74.6 |
| 130 km/h | 80.8 |
| 140 km/h | 87.0 |
| 150 km/h | 93.2 |
| 160 km/h | 99.4 |
| 170 km/h | 105.6 |
Time to the plate
The converter also shows how long a pitch takes to reach the plate at that speed. It divides the release-to-plate distance by the speed in ft/s, assuming the pitcher lets go about 5 ft in front of the rubber: 55 ft on a 60 ft 6 in mound and 41 ft on a 46 ft Little League mound. A real pitch loses some speed on the way, so the true time is a little longer.
To compare a Little League speed with a big-field speed by reaction time, use the pitch speed equivalent calculator, which lets you set the mound distance and release point.
A conversion is only as good as the reading. Radar guns measure at different points in the pitch's flight, so two guns can show different numbers for the same throw. See how to measure pitch speed and our radar gun guide for getting a reading you can trust.
Sources
- NIST: Guide to the SI, Appendix B.9 (mile per hour to km/h and m/s; foot per second to m/s)
Embed this converter
Copy the code below and paste it into your page's HTML. It's free and loads from this site. On a narrow column, raise the height to about 1000 so nothing gets cut off.
More tools
See all the free tools on the tools page: the pitch speed calculator, the Little League age calculator and the batting lineup builder.
FAQ
How do you convert mph to km/h?
Multiply the speed in mph by 1.609344. A 60 mph pitch is 96.6 km/h, and a 90 mph pitch is 144.8 km/h. To go the other way, divide km/h by 1.609344.
What is 100 mph in km/h?
100 mph is 160.9 km/h (160.9344 exactly), which is 44.7 m/s or 146.7 ft/s.
What is 150 km/h in mph?
150 km/h is about 93.2 mph.
How do you convert mph to feet per second?
Multiply by 22/15, about 1.4667. A mile is 5,280 feet and an hour is 3,600 seconds, so 60 mph is exactly 88 ft/s.
Are the conversion factors exact?
Yes. 1 mph is exactly 1.609344 km/h and exactly 0.44704 m/s, per NIST's conversion tables. The converter shows rounded results.
Can I put this converter on my site?
Yes. Copy the code in the Embed this converter section and paste it into your page. It's free.