diff --git a/HelmChart/Docs/Clickhouse.md b/HelmChart/Docs/Clickhouse.md
index 800a113fdc..a81f075a89 100644
--- a/HelmChart/Docs/Clickhouse.md
+++ b/HelmChart/Docs/Clickhouse.md
@@ -66,4 +66,21 @@ ORDER BY elapsed DESC;
 
 ```sql
 KILL QUERY WHERE query_id = 'your_query_id';
+```
+
+
+#### Get size of avg row in bytes by table. 
+
+```
+SELECT
+  c.table,
+  sum(c.data_uncompressed_bytes) AS total_uncompressed_bytes,
+  t.total_rows,
+  sum(c.data_uncompressed_bytes) / t.total_rows AS avg_uncompressed_row_size_bytes
+FROM system.columns c
+JOIN system.tables t
+  ON c.database = t.database AND c.table = t.name
+WHERE c.database = 'oneuptime'
+GROUP BY c.table, t.total_rows
+ORDER BY avg_uncompressed_row_size_bytes DESC;
 ```
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