Students in a class in the third grade collect tree species, and each person can collect 18 kilograms of tree species per day. According to this calculation, there are 4 groups in this class, with 8 people in each group. How many kilograms of tree species can be collected in one day?
三年级某班同学收集树种，每人每天可以收集树种18千克，照这样计算，这个班有4个小组，每个小组8人，一天一共可以收集树种多少千克？
<gadget id="calculator">18 * 8 * 4</gadget>
<output>576</output>

<result>576</result>