diff --git a/show-size.sh b/show-size.sh
index 3e987be7..2ae6171d 100755
--- a/show-size.sh
+++ b/show-size.sh
@@ -60,3 +60,11 @@ dynamic=$(echo $(echo "$dynamic_kb * 1024" | bc) | numfmt --to=iec --suffix=B --
 echo "Total static: $static"
 echo "Total: $total"
 echo "Dynamic: $dynamic"
+
+# Show disk space info when called without arguments
+if [ $# -eq 0 ]; then
+    echo ""
+    vols_free=$(df -h /var/lib/docker/volumes | awk 'NR==2 {print $4}')
+    vols_total=$(df -h /var/lib/docker/volumes | awk 'NR==2 {print $2}')
+    echo "Disk space: ${vols_free} free / ${vols_total} total"
+fi