Miles per Hour to Kilometers per Hour Converter (mph to km/h)

Convert miles per hour to kilometers per hour (mph to km/h). See results in km/h, m/s, ft/s, and knots. Includes US speed limits and sports speeds.

mph

SPEED IN KM/H

96.56 km/h

METERS/SEC

26.82 m/s

FEET/SEC

88.00 ft/s

KNOTS

52.14 kn

FORMULA

60Γ—1.609

MPH to KM/H β€” Quick Reference

mphkm/hm/sContext
5 mph8.0 km/h2.2 m/sParking lot
15 mph24.1 km/h6.7 m/sSchool zone
25 mph40.2 km/h11.2 m/sResidential street
30 mph48.3 km/h13.4 m/sCity street
35 mph56.3 km/h15.6 m/sUrban road
45 mph72.4 km/h20.1 m/sSuburban road
55 mph88.5 km/h24.6 m/sRural highway
60 mph96.6 km/h26.8 m/sUS highway
65 mph104.6 km/h29.1 m/sInterstate (common)
70 mph112.7 km/h31.3 m/sInterstate (standard)
75 mph120.7 km/h33.5 m/sInterstate (Texas/West)
100 mph160.9 km/h44.7 m/sNASCAR straightaway

How to Convert MPH to KM/H

Multiply by 1.60934 (since 1 mile = 1.60934 kilometers):

km/h = mph Γ— 1.60934

Example: 60 mph (US highway)
= 60 Γ— 1.60934 = 96.56 km/h

Example: 70 mph (interstate)
= 70 Γ— 1.60934 = 112.65 km/h

Example: 100 mph (NASCAR)
= 100 Γ— 1.60934 = 160.93 km/h

Quick estimate: Multiply by 1.6 for a fast approximation. 60 mph Γ— 1.6 = 96 km/h (actual: 96.56).

US Speed Limits β€” MPH to KM/H

Zonemphkm/hWhere
Parking lot5 mph8 km/hMalls, garages
School zone15–20 mph24–32 km/hNear schools (during hours)
Residential25 mph40 km/hNeighborhoods
City street30–35 mph48–56 km/hUrban areas
Suburban road40–45 mph64–72 km/hArterial roads
Rural highway55 mph89 km/hTwo-lane roads
US highway55–60 mph89–97 km/hNon-interstate highways
Interstate (urban)55–65 mph89–105 km/hCities like NYC, LA
Interstate (standard)65–70 mph105–113 km/hMost states
Interstate (rural)70–75 mph113–121 km/hWestern states
Texas toll roads80–85 mph129–137 km/hHighest US speed limit

US Sports Speeds

Sportmphkm/hContext
NFL β€” running back~22 mph~35 km/hTop sprint speed
MLB β€” fastball~100 mph~161 km/hElite pitcher speed
NBA β€” fast break~18 mph~29 km/hPlayer sprint
NHL β€” slap shot~100 mph~161 km/hPuck speed
NASCAR β€” race speed~200 mph~322 km/hSuperspeedway
F1 β€” top speed~230 mph~370 km/hGrand Prix straight
PGA β€” golf drive~185 mph~298 km/hBall speed off tee
Usain Bolt27.8 mph44.7 km/hFastest human ever

Speed Unit Comparison

Unit= 1 mphUsed By
Miles per hour (mph)1.000USA, UK (roads), Liberia, Myanmar
Kilometers per hour (km/h)1.60934Rest of the world
Meters per second (m/s)0.44704Science, physics
Feet per second (ft/s)1.46667US engineering, ballistics
Knots (kn)0.86898Aviation, maritime (worldwide)

What Is Miles per Hour?

Miles per hour (mph) is a speed unit used primarily in the United States and the United Kingdom (for road signs). 1 mph = 1.60934 km/h. All US speed limit signs, speedometers, and weather reports use mph.

What Is Kilometers per Hour?

Kilometers per hour (km/h) is the standard speed unit used by most countries worldwide. It's based on the metric system: 1 km/h = traveling 1 kilometer in 1 hour. Americans encounter km/h when renting cars abroad, watching international sports, or reading metric speedometers.

Miles per Hour to Kilometers per Hour Converter (mph to km/h) FAQ

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