The supermarket uses a car with a cuboid box to transport goods. Measured from the inside of the car, the length is 3 meters, the width is 2.5 meters, and the height is 1.6 meters. Each cubic meter of goods weighs 1.4 tons. How many tons can this car transport at one time?
超市用一辆车箱是长方体的汽车运货．从车厢里面量长是3米、宽是2.5米、高是1.6米，每立方米货物重1.4吨，这辆汽车一次能运货多少吨？
<gadget id="calculator">3 * 2.5 * 1.6 * 1.4</gadget>
<output>16.8</output>

<result>16.8</result>