محول كيلومتر في الساعة إلى ميل في الساعة

Multiply by 5, then divide by 8. Example: 80 km/h × 5 = 400, then 400 ÷ 8 = 50 mph. This gives you exact conversion. For rough estimates, multiply by 0.6: 80 × 0.6 = 48 mph (actual: 49.7). Another trick: divide by 1.6, so 80 ÷ 1.6 = 50 mph.

It follows local measurement traditions. US National Weather Service uses mph, while most other countries use km/h. Maritime weather often uses knots (nautical miles per hour) globally. The Beaufort scale translates to different speeds depending on the unit system used, which can confuse international weather comparisons.

Most cars manufactured after 2000 can switch between units via settings. Digital displays make this easy, while analog speedometers often show both scales (mph prominent in US/UK cars, km/h prominent elsewhere). Rental cars usually default to local units but can be changed. Check your vehicle manual for instructions.

United States, United Kingdom, Liberia, Myanmar (transitioning), and several Caribbean nations (Bahamas, Antigua, etc.) use mph. Some British territories like Cayman Islands also use mph. All other countries use km/h, including Canada which switched in 1977, and Ireland which changed in 2005.

Motorway/highway limits: Germany (no limit on some sections), Poland 140 km/h (87 mph), France/Austria 130 km/h (81 mph), USA varies 65-85 mph (105-137 km/h), UK 70 mph (113 km/h). Urban areas typically: 50 km/h (31 mph) in Europe, 25-35 mph (40-56 km/h) in USA. School zones universally around 20-30 km/h (12-19 mph).