Uncle Wang grows rapeseed in a vegetable field with a length of 15 meters and a width of 6 meters. If 4 kilograms of rapeseed are harvested per square meter, how many kilograms of rapeseed can this field harvest in total this year?
王大爷在一块长15米，宽6米的菜地种油菜，如果每平方米收油菜籽4千克，这块地今年一共可以收油菜籽多少千克？
<gadget id="calculator">15 * 6 * 4</gadget>
<output>360</output>

<result>360</result>