On a map with a scale of 1:500000, the distance between A and B is 12.5 cm. What is the actual distance in kilometers between A and B?
在一幅图上比例尺为1：500000的地图上，量得甲乙两地的距离为12.5厘米．甲乙两城实际距离为多少千米？
<gadget id="calculator">1 / 500_000</gadget>
<output>1/500_000 = around 0.000002</output>

<gadget id="calculator">12.5 / (1/500_000) / 100_000</gadget>
<output>62.5</output>

<result>62.5</result>