diff --git a/frontend/components/admin/dashboard/widget-sections/CustomMetricSection.tsx b/frontend/components/admin/dashboard/widget-sections/CustomMetricSection.tsx
index 97c0f395..7a3d10ea 100644
--- a/frontend/components/admin/dashboard/widget-sections/CustomMetricSection.tsx
+++ b/frontend/components/admin/dashboard/widget-sections/CustomMetricSection.tsx
@@ -233,7 +233,29 @@ export function CustomMetricSection({ queryResult, config, onConfigChange }: Cus
         />
       </div>
 
-      {/* 6. 자동 새로고침 간격 */}
+      {/* 6. 소수점 자릿수 */}
+      <div className="space-y-2">
+        <Label className="text-xs font-medium">소수점 자릿수</Label>
+        <Select
+          value={(config.decimals ?? 0).toString()}
+          onValueChange={(value) => onConfigChange({ decimals: parseInt(value) })}
+        >
+          <SelectTrigger className="h-9 text-xs">
+            <SelectValue placeholder="자릿수 선택" />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="0" className="text-xs">정수 (0자리)</SelectItem>
+            <SelectItem value="1" className="text-xs">소수점 1자리</SelectItem>
+            <SelectItem value="2" className="text-xs">소수점 2자리</SelectItem>
+            <SelectItem value="3" className="text-xs">소수점 3자리</SelectItem>
+          </SelectContent>
+        </Select>
+        <p className="text-[10px] text-muted-foreground">
+          표시할 소수점 자릿수 (평균, 비율 등에 유용)
+        </p>
+      </div>
+
+      {/* 7. 자동 새로고침 간격 */}
       <div className="space-y-2">
         <Label className="text-xs font-medium">자동 새로고침</Label>
         <Select