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mph km/h; mile per second: mi/s mi/s 1.0 mi/s (1.6 km/s) mi/s km/s; foot per second: ft/s (foot/s) ft/s long code "foot/s" outputs foot per second (and never feet) 1.0 ft/s (0.30 m/s) ft/s m/s (foot/s m/s) furlong per fortnight: furlong per fortnight (none) 1.0 furlong per fortnight (0.00060 km/h; 0.00037 mph) Aeronautical units: knot: kn (knot ...
Miles per hour (mph, m.p.h., MPH, or mi/h) is a British imperial and United States customary unit of speed expressing the number of miles travelled in one hour. It is used in the United Kingdom , the United States , and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.
As of May 15, 2017, 41 states have maximum speed limits of 70 mph (113 km/h) or higher. 18 of those states have 75 miles per hour (121 km/h) speed limits or higher, while 7 states of that same portion have 80 mph (129 km/h) speed limits, with Texas even having an 85 miles per hour (137 km/h) speed limit on one of its toll roads.
60/70 mph (96/112 km/h) [fn 18] dependent on class (motorways) 50/60/70 mph (80/96/112 km/h), ditto (trunk dual-carriageways) 60 mph (96 km/h) 40/50/60 mph (64/80/96 km/h) dependent on class. [fn 18] 10% + 2mph Gibraltar [70] 30–50: N/A: N/A: N/A: 35 for registered goods vehicles and buses: 10 Isle of Man [fn 16] 30 mph (48 km/h) N/A: No ...
< 1 mph < 1 km/h 0–0.2 m/s: 0 ft 0 m Sea like a mirror Smoke rises vertically 1 Light air 1–3 knots 1–3 mph 1–5 km/h 0.3–1.5 m/s 0–1 ft 0–0.3 m Ripples with appearance of scales are formed, without foam crests Direction shown by smoke drift but not by wind vanes 2 Light breeze 4–6 knots 4–7 mph 6–11 km/h 1.6–3.3 m/s
The legislation required 55 mph (89 km/h) speed limits on all four-lane divided highways unless the road had a lower limit before November 1, 1973. In some cases, like the New York State Thruway, the 50 mph (80 km/h) speed limit had to be raised to comply with the law. The law capped speed limits at 55 mph (89 km/h) on all other roads. [18]
Speed limit sign in the Republic of Ireland, using "km/h.". The SI representations, classified as symbols, are "km/h", "km h −1" and "km·h −1".Several other abbreviations of "kilometres per hour" have been used since the term was introduced and many are still in use today; for example, dictionaries list "kph", [3] [4] [5] "kmph" and "km/hr" [6] as English abbreviations.
On September 26, 2019, speed limits were raised in a two-year trial to 110 km/h (68 mph) from 100 km/h (62 mph) as part of a pilot across a 90 km (56 mi) stretch of Highway 402 from London to Sarnia, a 32 km (20 mi) stretch of the Queen Elizabeth Way from Hamilton to St. Catharines, and a 102 km (63 mi) stretch of Highway 417 from Ottawa to the ...