diff --git a/src/lang/greek.txt b/src/lang/greek.txt
--- a/src/lang/greek.txt
+++ b/src/lang/greek.txt
@@ -252,14 +252,14 @@ STR_COLOUR_WHITE                                                :Λευκό
 STR_COLOUR_RANDOM                                               :Τυχαία
 
 # Units used in OpenTTD
-STR_UNITS_VELOCITY_IMPERIAL                                     :{COMMA}{NBSP}μίλια/ώρα
-STR_UNITS_VELOCITY_METRIC                                       :{COMMA}{NBSP}χλμ/ώρα
-STR_UNITS_VELOCITY_SI                                           :{COMMA}{NBSP}m/s
+STR_UNITS_VELOCITY_IMPERIAL                                     :{DECIMAL}{NBSP}μίλια/ώρα
+STR_UNITS_VELOCITY_METRIC                                       :{DECIMAL}{NBSP}χλμ/ώρα
+STR_UNITS_VELOCITY_SI                                           :{DECIMAL}{NBSP}m/s
 STR_UNITS_VELOCITY_GAMEUNITS                                    :{DECIMAL}{NBSP}τετραγωνίδια/ημέρα
 
-STR_UNITS_POWER_IMPERIAL                                        :{COMMA}{NBSP}hp
-STR_UNITS_POWER_METRIC                                          :{COMMA}{NBSP}hp
-STR_UNITS_POWER_SI                                              :{COMMA}{NBSP}kW
+STR_UNITS_POWER_IMPERIAL                                        :{DECIMAL}{NBSP}hp
+STR_UNITS_POWER_METRIC                                          :{DECIMAL}{NBSP}hp
+STR_UNITS_POWER_SI                                              :{DECIMAL}{NBSP}kW
 
 STR_UNITS_POWER_IMPERIAL_TO_WEIGHT_IMPERIAL                     :{DECIMAL}{NBSP}hp/t
 STR_UNITS_POWER_IMPERIAL_TO_WEIGHT_METRIC                       :{DECIMAL}{NBSP}hp/t
@@ -270,29 +270,29 @@ STR_UNITS_POWER_SI_TO_WEIGHT_IMPERIAL   
 STR_UNITS_POWER_SI_TO_WEIGHT_METRIC                             :{DECIMAL}{NBSP}kW/t
 STR_UNITS_POWER_SI_TO_WEIGHT_SI                                 :{DECIMAL}{NBSP}W/kg
 
-STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{COMMA}{NBSP}τ.
-STR_UNITS_WEIGHT_SHORT_METRIC                                   :{COMMA}{NBSP}τ.
-STR_UNITS_WEIGHT_SHORT_SI                                       :{COMMA}{NBSP}kg
-
-STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{COMMA}{NBSP}τόνο{P ς ι}
-STR_UNITS_WEIGHT_LONG_METRIC                                    :{COMMA}{NBSP}τόνο{P ς ι}
-STR_UNITS_WEIGHT_LONG_SI                                        :{COMMA}{NBSP}kg
-
-STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{COMMA}{NBSP}γαλ
-STR_UNITS_VOLUME_SHORT_METRIC                                   :{COMMA}{NBSP}λ
-STR_UNITS_VOLUME_SHORT_SI                                       :{COMMA}{NBSP}m³
-
-STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{COMMA}{NBSP}γαλόν{P "ι" "ια"}
-STR_UNITS_VOLUME_LONG_METRIC                                    :{COMMA}{NBSP}λίτρ{P ο α}
-STR_UNITS_VOLUME_LONG_SI                                        :{COMMA}{NBSP}m³
-
-STR_UNITS_FORCE_IMPERIAL                                        :{COMMA}{NBSP}lbf
-STR_UNITS_FORCE_METRIC                                          :{COMMA}{NBSP}kgf
-STR_UNITS_FORCE_SI                                              :{COMMA}{NBSP}kN
-
-STR_UNITS_HEIGHT_IMPERIAL                                       :{COMMA}{NBSP}πόδ{P "ι" "ια"}
-STR_UNITS_HEIGHT_METRIC                                         :{COMMA}{NBSP}μ
-STR_UNITS_HEIGHT_SI                                             :{COMMA}{NBSP}m
+STR_UNITS_WEIGHT_SHORT_IMPERIAL                                 :{DECIMAL}{NBSP}τ.
+STR_UNITS_WEIGHT_SHORT_METRIC                                   :{DECIMAL}{NBSP}τ.
+STR_UNITS_WEIGHT_SHORT_SI                                       :{DECIMAL}{NBSP}kg
+
+STR_UNITS_WEIGHT_LONG_IMPERIAL                                  :{DECIMAL}{NBSP}τόνο{P ς ι}
+STR_UNITS_WEIGHT_LONG_METRIC                                    :{DECIMAL}{NBSP}τόνο{P ς ι}
+STR_UNITS_WEIGHT_LONG_SI                                        :{DECIMAL}{NBSP}kg
+
+STR_UNITS_VOLUME_SHORT_IMPERIAL                                 :{DECIMAL}{NBSP}γαλ
+STR_UNITS_VOLUME_SHORT_METRIC                                   :{DECIMAL}{NBSP}λ
+STR_UNITS_VOLUME_SHORT_SI                                       :{DECIMAL}{NBSP}m³
+
+STR_UNITS_VOLUME_LONG_IMPERIAL                                  :{DECIMAL}{NBSP}γαλόν{P "ι" "ια"}
+STR_UNITS_VOLUME_LONG_METRIC                                    :{DECIMAL}{NBSP}λίτρ{P ο α}
+STR_UNITS_VOLUME_LONG_SI                                        :{DECIMAL}{NBSP}m³
+
+STR_UNITS_FORCE_IMPERIAL                                        :{DECIMAL}{NBSP}lbf
+STR_UNITS_FORCE_METRIC                                          :{DECIMAL}{NBSP}kgf
+STR_UNITS_FORCE_SI                                              :{DECIMAL}{NBSP}kN
+
+STR_UNITS_HEIGHT_IMPERIAL                                       :{DECIMAL}{NBSP}πόδ{P "ι" "ια"}
+STR_UNITS_HEIGHT_METRIC                                         :{DECIMAL}{NBSP}μ
+STR_UNITS_HEIGHT_SI                                             :{DECIMAL}{NBSP}m
 
 # Common window strings
 STR_LIST_FILTER_TITLE                                           :{BLACK}Φιλτράρισμα λίστας: