It took Uncle Li from a certain city to Beijing by train for 12 hours, and the speed of the train was about 145 kilometers per hour. How many kilometers is it from the city to Beijing?
李叔叔从某城市乘火车去北京用了12小时，火车的速度每小时大约行驶145千米．该城市到北京大约有多少千米？
<gadget id="calculator">145 * 12</gadget>
<output>1_740</output>

<result>1_740</result>