diff --git a/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json b/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json
index ac06af18ff8477f1befc27e4dbb7f6f5c2031689..4f54a2db54b68005c4e481d26f9cd370d754e7c1 100644
--- a/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json
+++ b/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json
@@ -17,7 +17,7 @@
     "fs_hydraulique": "Hydraulic features",
     "Q": "Flow",
     "D": "Pipe diameter",
-    "J": "Head drop",
+    "J": "Total head loss",
     "Ks": "Singular head loss coefficient",
     "Lg": "Pipe length",
     "fs_param_calc": "Calculation parameters",
diff --git a/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json b/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json
index 4f1a5506aa187262c117b8627d681eb62083afa7..734557c79a01bf97b7e7814f5ae4b1d72632cafc 100644
--- a/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json
+++ b/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json
@@ -16,11 +16,13 @@
     "N": "N",
     "fs_hydraulique": "Caractéristiques hydrauliques",
     "D": "Diamètre du tuyau",
-    "J": "Perte de charge",
+    "J": "Perte de charge totale",
     "Ks": "Coefficient de perte de charge singulière",
     "Lg": "Longueur du tuyau",
     "fs_param_calc": "Paramètres de calcul",
     "Jl": "Perte de charge linéaire",
+    "UNIT_JL": "m",
+    "UNIT_V": "m/s",
     "Kl": "Coefficient de perte de charge linéaire",
     "fD": "Coefficient de perte de charge de Darcy"
 }
\ No newline at end of file