Feet per Second to MPH Converter 2025 - Speed Conversion Calculator

Feet per Second to MPH Converter

Convert ft/s to mph for speed and velocity calculations

ft/s
mph

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About Feet per Second to MPH Conversion

Converting feet per second to miles per hour is important in physics, sports analysis, automotive testing, and various engineering applications where speed measurements are needed.

Conversion Formula

1 ft/s = 0.681818 mph
MPH = Feet per Second × 0.681818

Derivation:
1 mile = 5,280 feet
1 hour = 3,600 seconds
1 ft/s × (3,600 s/hr) ÷ (5,280 ft/mi) = 0.681818 mph

Common Conversions

  • 10 ft/s = 6.82 mph
  • 30 ft/s = 20.45 mph
  • 44 ft/s = 30 mph
  • 60 ft/s = 40.91 mph
  • 88 ft/s = 60 mph
  • 100 ft/s = 68.18 mph

Speed Comparisons

  • Walking speed: ~4 ft/s = ~2.7 mph
  • Running speed: ~15 ft/s = ~10.2 mph
  • Cycling speed: ~22 ft/s = ~15 mph
  • Car city speed: ~44 ft/s = ~30 mph
  • Highway speed: ~88 ft/s = ~60 mph
  • Bullet speed: ~2,000 ft/s = ~1,364 mph

Applications

  • Sports performance analysis
  • Automotive acceleration testing
  • Physics and engineering calculations
  • Ballistics and projectile motion
  • Aviation and aerospace
  • Safety and impact studies

Related Units

  • 1 mph = 1.46667 ft/s
  • 1 mph = 0.44704 m/s
  • 1 ft/s = 0.3048 m/s
  • 1 m/s = 3.28084 ft/s = 2.23694 mph

Practical Examples

  • Free fall after 1 second: 32.2 ft/s = 21.95 mph
  • Terminal velocity (human): ~195 ft/s = ~133 mph
  • Baseball pitch: ~130 ft/s = ~89 mph
  • Sound at sea level: ~1,125 ft/s = ~767 mph