There is a rectangular sweet potato field with a length of 18 meters and a width of 10 meters. If 8 kilograms of sweet potatoes can be harvested per square meter, how many kilograms of sweet potatoes can be harvested in this field.
有一块长方形的红薯地长18米，宽10米，如果每平方米可收红薯8千克，这块地可以收红薯多少千克．
<gadget id="calculator">18 * 10 * 8</gadget>
<output>1_440</output>

<result>1_440</result>