Mile per Hour to Yard per Second

Mile per hour measures how many statute miles are traveled in one hour. It's the primary speed unit in the United States and some other countries using imperial measurements.

1 mph = 0.44704 m/s = 1.609 km/h. The conversion factor comes from the statute mile definition.

To km/h: × 1.609. To m/s: × 0.447. To ft/s: × 1.467. To knots: × 0.869.

US speed limits (25 mph residential, 65–75 mph interstate), vehicle speeds in US/UK, hurricane wind speeds (74+ mph), and baseball pitch speeds.

Sound barrier: 767 mph at sea level. Fastest car: 282.9 mph (Koenigsegg). Commercial jet: 550–580 mph cruise. Cheetah: 70 mph sprint.

Assuming 1 mph ≈ 1 km/h — actually 1 mph ≈ 1.6 km/h. Also, confusing statute miles with nautical miles.

Quick conversion: multiply mph by 1.6 for approximate km/h. Remember: 60 mph ≈ 100 km/h (slightly off but close).

Yard per second measures distance in yards traveled in one second.

1 yd/s = 0.9144 m/s = 3.29 km/h = 2.045 mph = 3 ft/s.

To ft/s: × 3. To m/s: × 0.9144. To mph: × 2.045.

Sprint speeds in track and field (10–12 yd/s for elite sprinters), projectile velocities, and some fluid flow measurements.

Usain Bolt peak: ~13.5 yd/s. NFL wide receiver sprint: ~11 yd/s. Baseball thrown: ~40–45 yd/s.

Confusing with ft/s — yd/s is 3× faster. Mixing up with mph.

1 yd/s = 3 ft/s = 0.9144 m/s. Multiply by ~2 to get approximate mph.