diff --git a/Marlin/language_fi.h b/Marlin/language_fi.h
index 234660025..54e56aec5 100644
--- a/Marlin/language_fi.h
+++ b/Marlin/language_fi.h
@@ -17,29 +17,29 @@
 #define MSG_AUTO_HOME                       "Aja referenssiin"
 #define MSG_SET_HOME_OFFSETS                "Set home offsets"
 #define MSG_SET_ORIGIN                      "Aseta origo"
-#define MSG_PREHEAT_PLA                     "Esilammita PLA"
-#define MSG_PREHEAT_PLA_N                   "Esilammita PLA "
+#define MSG_PREHEAT_PLA                     "Esil\344mmit\344 PLA"
+#define MSG_PREHEAT_PLA_N                   "Esil\344mmit\344 PLA "
 #define MSG_PREHEAT_PLA_ALL                 "Esila. PLA Kaikki"
 #define MSG_PREHEAT_PLA_BEDONLY             "Esila. PLA Alusta"
-#define MSG_PREHEAT_PLA_SETTINGS            "Esilamm. PLA konf"
-#define MSG_PREHEAT_ABS                     "Esilammita ABS"
-#define MSG_PREHEAT_ABS_N                   "Esilammita ABS "
+#define MSG_PREHEAT_PLA_SETTINGS            "Esil\344mm. PLA konf"
+#define MSG_PREHEAT_ABS                     "Esil\344mmit\344 ABS"
+#define MSG_PREHEAT_ABS_N                   "Esil\344mmit\344 ABS "
 #define MSG_PREHEAT_ABS_ALL                 "Esila. ABS Kaikki"
 #define MSG_PREHEAT_ABS_BEDONLY             "Esila. ABS Alusta"
 #define MSG_PREHEAT_ABS_SETTINGS            "Esilamm. ABS konf"
-#define MSG_COOLDOWN                        "Jaahdyta"
-#define MSG_SWITCH_PS_ON                    "Virta paalle"
+#define MSG_COOLDOWN                        "J\344\344hdyt\344"
+#define MSG_SWITCH_PS_ON                    "Virta p\344\344lle"
 #define MSG_SWITCH_PS_OFF                   "Virta pois"
 #define MSG_EXTRUDE                         "Pursota"
-#define MSG_RETRACT                         "Veda takaisin"
+#define MSG_RETRACT                         "Ved\344 takaisin"
 #define MSG_MOVE_AXIS                       "Liikuta akseleita"
-#define MSG_MOVE_X                          "Move X"
-#define MSG_MOVE_Y                          "Move Y"
-#define MSG_MOVE_Z                          "Move Z"
+#define MSG_MOVE_X                          "Liikuta X"
+#define MSG_MOVE_Y                          "Liikuta Y"
+#define MSG_MOVE_Z                          "Liikuta Z"
 #define MSG_MOVE_E                          "Extruder"
-#define MSG_MOVE_01MM                       "Move 0.1mm"
-#define MSG_MOVE_1MM                        "Move 1mm"
-#define MSG_MOVE_10MM                       "Move 10mm"
+#define MSG_MOVE_01MM                       "Liikuta 0.1mm"
+#define MSG_MOVE_1MM                        "Liikuta 1mm"
+#define MSG_MOVE_10MM                       "Liikuta 10mm"
 #define MSG_SPEED                           "Nopeus"
 #define MSG_NOZZLE                          "Suutin"
 #define MSG_BED                             "Alusta"
@@ -73,24 +73,24 @@
 #define MSG_YSTEPS                          "Ysteps/mm"
 #define MSG_ZSTEPS                          "Zsteps/mm"
 #define MSG_ESTEPS                          "Esteps/mm"
-#define MSG_TEMPERATURE                     "Lampotila"
+#define MSG_TEMPERATURE                     "L\344mp" STR_Oe "tila"
 #define MSG_MOTION                          "Liike"
 #define MSG_VOLUMETRIC                      "Filament"
-#define MSG_VOLUMETRIC_ENABLED		        "E in mm3"
+#define MSG_VOLUMETRIC_ENABLED              "E in mm3"
 #define MSG_FILAMENT_SIZE_EXTRUDER_0        "Fil. Dia. 1"
 #define MSG_FILAMENT_SIZE_EXTRUDER_1        "Fil. Dia. 2"
 #define MSG_FILAMENT_SIZE_EXTRUDER_2        "Fil. Dia. 3"
-#define MSG_CONTRAST                        "LCD contrast"
+#define MSG_CONTRAST                        "LCD kontrasti"
 #define MSG_STORE_EPROM                     "Tallenna muistiin"
 #define MSG_LOAD_EPROM                      "Lataa muistista"
 #define MSG_RESTORE_FAILSAFE                "Palauta oletus"
-#define MSG_REFRESH                         "Paivita"
+#define MSG_REFRESH                         "P\344ivit\344"
 #define MSG_WATCH                           "Seuraa"
 #define MSG_PREPARE                         "Valmistele"
-#define MSG_TUNE                            "Saada"
-#define MSG_PAUSE_PRINT                     "Keskeyta tulostus"
+#define MSG_TUNE                            "S\344\344d\344"
+#define MSG_PAUSE_PRINT                     "Keskeyt\344 tulostus"
 #define MSG_RESUME_PRINT                    "Jatka tulostusta"
-#define MSG_STOP_PRINT                      "Pysayta tulostus"
+#define MSG_STOP_PRINT                      "Pys\344yt\344 tulostus"
 #define MSG_CARD_MENU                       "Korttivalikko"
 #define MSG_NO_CARD                         "Ei korttia"
 #define MSG_DWELL                           "Nukkumassa..."
@@ -100,9 +100,9 @@
 #define MSG_NO_MOVE                         "Ei liiketta."
 #define MSG_KILLED                          "KILLED. "
 #define MSG_STOPPED                         "STOPPED. "
-#define MSG_CONTROL_RETRACT                 "Veda mm"
-#define MSG_CONTROL_RETRACT_SWAP            "Va. Veda mm"
-#define MSG_CONTROL_RETRACTF                "Veda V"
+#define MSG_CONTROL_RETRACT                 "Ved\344 mm"
+#define MSG_CONTROL_RETRACT_SWAP            "Va. Ved\344 mm"
+#define MSG_CONTROL_RETRACTF                "Ved\344 V"
 #define MSG_CONTROL_RETRACT_ZLIFT           "Z mm"
 #define MSG_CONTROL_RETRACT_RECOVER         "UnRet +mm"
 #define MSG_CONTROL_RETRACT_RECOVER_SWAP    "Va. UnRet +mm"
@@ -120,11 +120,11 @@
 #define MSG_ENDSTOP_ABORT                   "Endstop abort"
 
 #ifdef DELTA_CALIBRATION_MENU
-    #define MSG_DELTA_CALIBRATE             "Delta Calibration"
-    #define MSG_DELTA_CALIBRATE_X           "Calibrate X"
-    #define MSG_DELTA_CALIBRATE_Y           "Calibrate Y"
-    #define MSG_DELTA_CALIBRATE_Z           "Calibrate Z"
-    #define MSG_DELTA_CALIBRATE_CENTER      "Calibrate Center"
+    #define MSG_DELTA_CALIBRATE             "Delta Kalibrointi"
+    #define MSG_DELTA_CALIBRATE_X           "Kalibroi X"
+    #define MSG_DELTA_CALIBRATE_Y           "Kalibroi Y"
+    #define MSG_DELTA_CALIBRATE_Z           "Kalibroi Z"
+    #define MSG_DELTA_CALIBRATE_CENTER      "Kalibroi Center"
 #endif // DELTA_CALIBRATION_MENU
 
 #endif // LANGUAGE_FI_H