diff --git a/configuration.yaml b/configuration.yaml
index d121175..06413e9 100644
--- a/configuration.yaml
+++ b/configuration.yaml
@@ -38,6 +38,14 @@ mqtt_statestream: !include mqtt_statestream.yaml
 # Template sensors
 template: !include template.yaml
 
+# Database size sensor
+sql:
+  - name: "Home Assistant Datenbankgröße"
+    db_url: !secret ha_recorder_dburl
+    query: 'SELECT table_schema "database", Round(Sum(data_length + index_length) / 1048576, 2) "value" FROM information_schema.tables WHERE table_schema="homeassistant" GROUP BY table_schema;'
+    column: 'value'
+    unit_of_measurement: MB
+
 # calendar integration
 calendar: !include calendars.yaml