A cube steel ingot with a side length of 0.4 meters and a weight of 7.8 tons per cubic meter of steel ingot. How much does this steel ingot weigh?
一块正方体钢锭，棱长为0.4米，每立方米钢锭重7.8吨，这块钢锭约有多重？
<gadget id="calculator">0.4 * 0.4 * 0.4 * 7.8</gadget>
<output>0.4992</output>

<result>0.4992</result>