Xiaojun's family replaced the old flush toilet with a water-saving flush toilet, which can save 600 kilograms of water every month. According to this calculation, how many kilograms of water can be saved a year?
小军家把旧的抽水马桶换成了节水型抽水马桶，每个月可以节水600千克．照这样计算，一年可节约用水多少千克？
<gadget id="calculator">600 * 12</gadget>
<output>7_200</output>

<result>7_200</result>