diff --git a/src/pages/product/manage.vue b/src/pages/product/manage.vue
index 1512bee..b36284c 100644
--- a/src/pages/product/manage.vue
+++ b/src/pages/product/manage.vue
@@ -151,8 +151,9 @@ export default {
     computedArea() {
       const l = parseFloat(this.form.length)
       const w = parseFloat(this.form.width)
+      // 长度(cm) × 宽度(cm) ÷ 10000 = 面积(m²)
       if (!isNaN(l) && !isNaN(w) && l > 0 && w > 0) {
-        return (l * w).toFixed(2)
+        return (l * w / 10000).toFixed(2)
       }
       return ''
     }