diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index ea307f126d..bd07add891 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -1661,7 +1661,7 @@
  * Nozzle-to-Probe offsets { X, Y, Z }
  *
  * X and Y offset
- *   Use a caliper or ruler to measure the distance from the tip of
+ *   Use a caliper or ruler to measure the distance (in mm) from the tip of
  *   the Nozzle to the center-point of the Probe in the X and Y axes.
  *
  * Z offset
@@ -1697,7 +1697,7 @@
  *     |    [-]    |
  *     O-- FRONT --+
  */
-#define NOZZLE_TO_PROBE_OFFSET { 10, 10, 0 }
+#define NOZZLE_TO_PROBE_OFFSET { 10, 10, 0 } // (mm) X, Y, Z distance from Nozzle tip to Probe trigger-point
 
 // Enable and set to use a specific tool for probing. Disable to allow any tool.
 #define PROBING_TOOL 0