There is a sandpit on the playground of Chaoyang Primary School, which is 2.5 meters long, 1.5 meters wide, and 0.6 meters deep. How many cubic meters is needed to fill the sandpit?
朝阳小学操场上有一个沙坑长2.5米，宽1.5米，深0.6米，填满这个沙坑，需要多少立方米？
<gadget id="calculator">2.5 * 1.5 * 0.6</gadget>
<output>2.25</output>

<result>2.25</result>