How many kilometers does 80 mph run in one hour?
2 Answers
Car speed of 80 mph is 80 km/h. So running for one hour would be 80 kilometers. 'Mph' is a foreign unit that has been colloquialized in China. Introduction to 'Mph': 'Mph' is a British length unit, approximately equal to 0.9144 meters. Due to people's colloquial habit of omitting the 'per hour' part, it is also used as a speed unit. Car speed is calculated in metric units of kilometers. When British people say 100 mph, it equals 160 kilometers per hour, so 80 mph abroad means 50 mph. Unit conversion: 1 mph (Chinese colloquial) = 1 kilometer (/hour) 1 mph (British unit) = 0.9144 meters (meters, not kilometers) 1 mile = 1.609344 kilometers Origin of car speed units: Cars originated from foreign countries. The original speed measurement unit was the mile, and speedometers in cars were also marked with miles. At that time, most people were not familiar with English. When they heard the term 'mile,' they didn't know what it meant. They only knew it referred to the car's speed. To make it easier for the general public to understand, 'mile' was transliterated as 'mph.' Thus, it became a unit for measuring car speed. In other words, 'mph' is a loanword for 'mile,' meaning mile.
Actually, many car enthusiasts confuse the concept of 'yard.' Internationally, 1 yard equals 0.914 meters, so 80 yards converts to roughly 73 meters per minute. However, when we Chinese say 80 yards, we actually mean 80 kilometers per hour. I always pay close attention to this distinction while driving, as speeding can lead to fines. It's safest to focus on the km/h marking on the dashboard—that 'h' inside a circle is the official unit for speed. The conversion is straightforward: when the dashboard displays 80, the actual speed is 80 kilometers per hour, which means covering 1.3 kilometers every minute.
