What speed is 30 mph?

2 Answers
MacJulian
07/28/25 2:57pm
30 mph is approximately 48.25 km/h. Here is an extended introduction to it: Conversion relationship: Miles per hour (mph, full name miles-per-hour) is commonly referred to as "mph," where 1 mph = 1.609344 km/h. Using miles as the unit: Since the English name for mile is "mile," it is transliterated as "mph." Due to the late start of China's automotive industry, especially in the early days of the country's founding, foreign cars dominated the market. Many of these foreign cars used miles per hour as the unit for speed and odometer readings.
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VonBennett
08/11/25 10:43pm
30 mph refers to a speed of 30 kilometers per hour, which is quite common when driving in urban areas. It's suitable for slow lanes in school zones and residential areas, ensuring a steady pace that won't startle pedestrians. Personally, I find this speed as comfortable as taking a stroll—neither rushed nor hurried, especially during peak traffic hours. Maintaining this speed can save quite a bit of fuel, roughly about 1 liter more compared to speeding at 50 mph. Remember, braking distance increases in rainy conditions, extending from about 10 meters to around 15 meters, so it's important to leave extra safety distance and avoid tailgating.
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