diff --git a/apps/math_toolbox.cpp b/apps/math_toolbox.cpp
index 43719cc9c..960466bbe 100644
--- a/apps/math_toolbox.cpp
+++ b/apps/math_toolbox.cpp
@@ -204,15 +204,9 @@ const ToolboxMessageTree unitCapacitanceFaradChildren[] = {
 };
 
 const ToolboxMessageTree unitResistanceOhmChildren[] = {
-  ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmTeraSymbol, I18n::Message::UnitResistanceOhmTera),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmGigaSymbol, I18n::Message::UnitResistanceOhmGiga),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmMegaSymbol, I18n::Message::UnitResistanceOhmMega),
   ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmKiloSymbol, I18n::Message::UnitResistanceOhmKilo),
   ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmSymbol, I18n::Message::UnitResistanceOhm),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmMilliSymbol, I18n::Message::UnitResistanceOhmMilli),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmMicroSymbol, I18n::Message::UnitResistanceOhmMicro),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmNanoSymbol, I18n::Message::UnitResistanceOhmNano),
-  ToolboxMessageTree::Leaf(I18n::Message::UnitResistanceOhmPicoSymbol, I18n::Message::UnitResistanceOhmPico)};
+};
 
 const ToolboxMessageTree unitConductanceSiemensChildren[] = {
   ToolboxMessageTree::Leaf(I18n::Message::UnitConductanceSiemensTeraSymbol, I18n::Message::UnitConductanceSiemensTera),
diff --git a/apps/shared.universal.i18n b/apps/shared.universal.i18n
index 3bb40a5ba..aa7451067 100644
--- a/apps/shared.universal.i18n
+++ b/apps/shared.universal.i18n
@@ -63,15 +63,8 @@ UnitPotentialVoltMicroSymbol = "_μV"
 UnitCapacitanceFaradSymbol = "_F"
 UnitCapacitanceFaradMilliSymbol = "_mF"
 UnitCapacitanceFaradMicroSymbol = "_μF"
-UnitResistanceOhmTeraSymbol = "_TΩ"
-UnitResistanceOhmGigaSymbol = "_GΩ"
-UnitResistanceOhmMegaSymbol = "_MΩ"
 UnitResistanceOhmKiloSymbol = "_kΩ"
 UnitResistanceOhmSymbol = "_Ω"
-UnitResistanceOhmMilliSymbol = "_mΩ"
-UnitResistanceOhmMicroSymbol = "_μΩ"
-UnitResistanceOhmNanoSymbol = "_nΩ"
-UnitResistanceOhmPicoSymbol = "_pΩ"
 UnitConductanceSiemensTeraSymbol = "_TS"
 UnitConductanceSiemensGigaSymbol = "_GS"
 UnitConductanceSiemensMegaSymbol = "_MS"
diff --git a/apps/toolbox.de.i18n b/apps/toolbox.de.i18n
index 9f77b0129..4eebbfd3f 100644
--- a/apps/toolbox.de.i18n
+++ b/apps/toolbox.de.i18n
@@ -84,15 +84,8 @@ UnitCapacitanceFarad = "Farad"
 UnitCapacitanceFaradMilli = "Millifarad"
 UnitCapacitanceFaradMicro = "Microfarad"
 UnitResistanceMenu = "Electrical resistance"
-UnitResistanceOhmTera = "Teraohm"
-UnitResistanceOhmGiga = "Gigaohm"
-UnitResistanceOhmMega = "Megaohm"
 UnitResistanceOhmKilo = "Kiloohm"
 UnitResistanceOhm = "Ohm"
-UnitResistanceOhmMilli = "Milliohm"
-UnitResistanceOhmMicro = "Microohm"
-UnitResistanceOhmNano = "Nanoohm"
-UnitResistanceOhmPico = "Picoohm"
 UnitConductanceMenu = "Electrical conductance"
 UnitConductanceSiemensTera = "Terasiemens"
 UnitConductanceSiemensGiga = "Gigasiemens"
diff --git a/apps/toolbox.en.i18n b/apps/toolbox.en.i18n
index 8088f6d6d..5bdc11bca 100644
--- a/apps/toolbox.en.i18n
+++ b/apps/toolbox.en.i18n
@@ -84,15 +84,8 @@ UnitCapacitanceFarad = "Farad"
 UnitCapacitanceFaradMilli = "Millifarad"
 UnitCapacitanceFaradMicro = "Microfarad"
 UnitResistanceMenu = "Electrical resistance"
-UnitResistanceOhmTera = "Teraohm"
-UnitResistanceOhmGiga = "Gigaohm"
-UnitResistanceOhmMega = "Megaohm"
 UnitResistanceOhmKilo = "Kiloohm"
 UnitResistanceOhm = "Ohm"
-UnitResistanceOhmMilli = "Milliohm"
-UnitResistanceOhmMicro = "Microohm"
-UnitResistanceOhmNano = "Nanoohm"
-UnitResistanceOhmPico = "Picoohm"
 UnitConductanceMenu = "Electrical conductance"
 UnitConductanceSiemensTera = "Terasiemens"
 UnitConductanceSiemensGiga = "Gigasiemens"
diff --git a/apps/toolbox.es.i18n b/apps/toolbox.es.i18n
index 1fee98755..02dca50f4 100644
--- a/apps/toolbox.es.i18n
+++ b/apps/toolbox.es.i18n
@@ -84,15 +84,8 @@ UnitCapacitanceFarad = "Farad"
 UnitCapacitanceFaradMilli = "Millifarad"
 UnitCapacitanceFaradMicro = "Microfarad"
 UnitResistanceMenu = "Electrical resistance"
-UnitResistanceOhmTera = "Teraohm"
-UnitResistanceOhmGiga = "Gigaohm"
-UnitResistanceOhmMega = "Megaohm"
 UnitResistanceOhmKilo = "Kiloohm"
 UnitResistanceOhm = "Ohm"
-UnitResistanceOhmMilli = "Milliohm"
-UnitResistanceOhmMicro = "Microohm"
-UnitResistanceOhmNano = "Nanoohm"
-UnitResistanceOhmPico = "Picoohm"
 UnitConductanceMenu = "Electrical conductance"
 UnitConductanceSiemensTera = "Terasiemens"
 UnitConductanceSiemensGiga = "Gigasiemens"
diff --git a/apps/toolbox.fr.i18n b/apps/toolbox.fr.i18n
index cb31def44..2ca5579fd 100644
--- a/apps/toolbox.fr.i18n
+++ b/apps/toolbox.fr.i18n
@@ -84,15 +84,8 @@ UnitCapacitanceFarad = "Farad"
 UnitCapacitanceFaradMilli = "Millifarad"
 UnitCapacitanceFaradMicro = "Microfarad"
 UnitResistanceMenu = "Résistance électrique"
-UnitResistanceOhmTera = "Teraohm"
-UnitResistanceOhmGiga = "Gigaohm"
-UnitResistanceOhmMega = "Megaohm"
 UnitResistanceOhmKilo = "Kiloohm"
 UnitResistanceOhm = "Ohm"
-UnitResistanceOhmMilli = "Milliohm"
-UnitResistanceOhmMicro = "Microohm"
-UnitResistanceOhmNano = "Nanoohm"
-UnitResistanceOhmPico = "Picoohm"
 UnitConductanceMenu = "Conductance électrique"
 UnitConductanceSiemensTera = "Terasiemens"
 UnitConductanceSiemensGiga = "Gigasiemens"
diff --git a/apps/toolbox.pt.i18n b/apps/toolbox.pt.i18n
index efeff85f8..d96fc4890 100644
--- a/apps/toolbox.pt.i18n
+++ b/apps/toolbox.pt.i18n
@@ -84,15 +84,8 @@ UnitCapacitanceFarad = "Farad"
 UnitCapacitanceFaradMilli = "Millifarad"
 UnitCapacitanceFaradMicro = "Microfarad"
 UnitResistanceMenu = "Electrical resistance"
-UnitResistanceOhmTera = "Teraohm"
-UnitResistanceOhmGiga = "Gigaohm"
-UnitResistanceOhmMega = "Megaohm"
 UnitResistanceOhmKilo = "Kiloohm"
 UnitResistanceOhm = "Ohm"
-UnitResistanceOhmMilli = "Milliohm"
-UnitResistanceOhmMicro = "Microohm"
-UnitResistanceOhmNano = "Nanoohm"
-UnitResistanceOhmPico = "Picoohm"
 UnitConductanceMenu = "Electrical conductance"
 UnitConductanceSiemensTera = "Terasiemens"
 UnitConductanceSiemensGiga = "Gigasiemens"