diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 07d971169..a0a65f9c2 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -501,14 +501,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled.
-// To get a rough start value for calibration, measure your "free filament length" between the hobbed bolt and the nozzle in cm.
-// Then use the formula that fits your system, where L is the "free filament length":
-// Filament diameter           |   1,75mm  |    3mm     |
-// Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
-// Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/Cartesio/Configuration_adv.h b/Marlin/example_configurations/Cartesio/Configuration_adv.h
index 951d5df8b..98e491221 100644
--- a/Marlin/example_configurations/Cartesio/Configuration_adv.h
+++ b/Marlin/example_configurations/Cartesio/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/Felix/Configuration_adv.h b/Marlin/example_configurations/Felix/Configuration_adv.h
index dfcabe6b1..4138656e2 100644
--- a/Marlin/example_configurations/Felix/Configuration_adv.h
+++ b/Marlin/example_configurations/Felix/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/Hephestos/Configuration_adv.h b/Marlin/example_configurations/Hephestos/Configuration_adv.h
index 6e8d66f8d..fb337fc77 100644
--- a/Marlin/example_configurations/Hephestos/Configuration_adv.h
+++ b/Marlin/example_configurations/Hephestos/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 1.75
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/Hephestos_2/Configuration_adv.h b/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
index e15be7234..e5c46ae26 100644
--- a/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
+++ b/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/K8200/Configuration_adv.h b/Marlin/example_configurations/K8200/Configuration_adv.h
index b2c6fd483..0985448e1 100644
--- a/Marlin/example_configurations/K8200/Configuration_adv.h
+++ b/Marlin/example_configurations/K8200/Configuration_adv.h
@@ -507,9 +507,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/K8400/Configuration_adv.h b/Marlin/example_configurations/K8400/Configuration_adv.h
index 50fd0e0c7..ebb9e8371 100644
--- a/Marlin/example_configurations/K8400/Configuration_adv.h
+++ b/Marlin/example_configurations/K8400/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/RigidBot/Configuration_adv.h b/Marlin/example_configurations/RigidBot/Configuration_adv.h
index 8dbc685dd..ad70111aa 100644
--- a/Marlin/example_configurations/RigidBot/Configuration_adv.h
+++ b/Marlin/example_configurations/RigidBot/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 1.75
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/SCARA/Configuration_adv.h b/Marlin/example_configurations/SCARA/Configuration_adv.h
index 51f6cb512..331234018 100644
--- a/Marlin/example_configurations/SCARA/Configuration_adv.h
+++ b/Marlin/example_configurations/SCARA/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 1.75
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/TAZ4/Configuration_adv.h b/Marlin/example_configurations/TAZ4/Configuration_adv.h
index 096d97edc..28eab90c7 100644
--- a/Marlin/example_configurations/TAZ4/Configuration_adv.h
+++ b/Marlin/example_configurations/TAZ4/Configuration_adv.h
@@ -509,9 +509,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/WITBOX/Configuration_adv.h b/Marlin/example_configurations/WITBOX/Configuration_adv.h
index 6e8d66f8d..fb337fc77 100644
--- a/Marlin/example_configurations/WITBOX/Configuration_adv.h
+++ b/Marlin/example_configurations/WITBOX/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 1.75
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h b/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
index c5b8101a5..e22c36ce7 100644
--- a/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
@@ -503,9 +503,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/delta/generic/Configuration_adv.h b/Marlin/example_configurations/delta/generic/Configuration_adv.h
index 870c67c7e..d8da99e48 100644
--- a/Marlin/example_configurations/delta/generic/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/generic/Configuration_adv.h
@@ -503,9 +503,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
index 870c67c7e..d8da99e48 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
@@ -503,9 +503,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
index 5c68f33de..8f80d130c 100644
--- a/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
@@ -508,9 +508,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
index 0a12114ff..698f9270b 100644
--- a/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
@@ -503,9 +503,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/makibox/Configuration_adv.h b/Marlin/example_configurations/makibox/Configuration_adv.h
index dc08d5b1e..d1a0f66fa 100644
--- a/Marlin/example_configurations/makibox/Configuration_adv.h
+++ b/Marlin/example_configurations/makibox/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h b/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
index dc57f5212..f68070341 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
@@ -501,9 +501,20 @@
   #define D_FILAMENT 2.85
 #endif
 
-// Implementation of a linear pressure control
-// Assumption: advance = k * (delta velocity)
-// K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75
+/**
+ * Implementation of linear pressure control
+ *
+ * Assumption: advance = k * (delta velocity)
+ * K=0 means advance disabled.
+ * To get a rough start value for calibration, measure your "free filament length"
+ * between the hobbed bolt and the nozzle (in cm). Use the formula below that fits
+ * your setup, where L is the "free filament length":
+ *
+ * Filament diameter           |   1.75mm  |    3.0mm   |
+ * ----------------------------|-----------|------------|
+ * Stiff filament (PLA)        | K=47*L/10 | K=139*L/10 |
+ * Softer filament (ABS, nGen) | K=88*L/10 | K=260*L/10 |
+ */
 //#define LIN_ADVANCE
 
 #if ENABLED(LIN_ADVANCE)