键入您想要转换，然后按转换按钮的金额. 每小时英里 自 每小时公里. 单位之间转换 (mph → km/h) 或见转换表.

从英里每小时（mph）到公里每小时（km/h）的转换可以通过以下公式进行： km/h = mph ×1.609344 反过来，从公里每小时（km/h）到英里每小时（mph）则可使用：

How fast is 40 miles per hour? What is 40 miles per hour in kilometers per hour? This simple calculator will allow you to easily convert 40 mph to km/h.

虽然就官方而言公制已经被采用，但在英国，公路限制仍使用英里每小时，缩写为mph或mi/h。 在使用公制的国家中用于交通运输的一个典型的速度度量。 公路限速用公里每小时来表示，缩写为kph或km/h。

Miles per hour to Kilometers per hour (mph to kph) conversion calculator for Speed conversions with additional tables and formulas.

雖然就官方而言公制已經被採用，但在英國，公路限制仍使用英里每小時，縮寫為mph或mi/h。 在使用公制的國家中用於交通運輸的一個典型的速度度量。 公路限速用公里每小時來表示，縮寫為kph或km/h。

Use this converter to easily convert between Miles per hour and Kilometers per hour (mph to kmph / kmh). How many Kilometers per hour equal one Mile per hour?

Here we will explain and show you how to convert 40 miles per hour to kilometers per hour. Miles per hour can be abbreviated to mph and kilometers per hour can be shortened to kmh or km/h. To calculate how fast 40 mph is in km/h, you need to know the mph to kmh formula. There are 1.609344 kilometers per mile.

Convert 40 miles per hour to kilometers per hour effortlessly with Lule Tools' Speed Calculator. Get precise conversion results for any speed.

Use the conversion factor: 1 mph equals 1.60934 kilometers per hour. For example, to convert 40 mph to km/h, calculate 40 x 1.60934 km/h , which is 64.3738 km/h . The formula is: speed in km/h = speed in mph x 1.60934