diff --git a/src/util/hass-attributes-util.ts b/src/util/hass-attributes-util.ts
index 9c5fec0816..cddc1d20d6 100644
--- a/src/util/hass-attributes-util.ts
+++ b/src/util/hass-attributes-util.ts
@@ -3,6 +3,7 @@ import { until } from "lit/directives/until";
 import checkValidDate from "../common/datetime/check_valid_date";
 import { formatDate } from "../common/datetime/format_date";
 import { formatDateTimeWithSeconds } from "../common/datetime/format_date_time";
+import { formatNumber } from "../common/number/format_number";
 import { capitalizeFirstLetter } from "../common/string/capitalize-first-letter";
 import { isDate } from "../common/string/is_date";
 import { isTimestamp } from "../common/string/is_timestamp";
@@ -190,6 +191,10 @@ export function formatAttributeValue(
     return html`<pre>${until(yaml, "")}</pre>`;
   }
 
+  if (typeof value === "number") {
+    return formatNumber(value, hass.locale);
+  }
+
   if (typeof value === "string") {
     // URL handling
     if (value.startsWith("http")) {