diff --git a/apps/toolbox.pt.i18n b/apps/toolbox.pt.i18n
index 51c74171d..37e91706b 100644
--- a/apps/toolbox.pt.i18n
+++ b/apps/toolbox.pt.i18n
@@ -1,112 +1,112 @@
-Unit = "Units"
-UnitTimeMenu = "Time"
-UnitTimeSecondMenu = "Second"
-UnitTimeSecond = "Second"
-UnitTimeSecondMilli = "Millisecond"
-UnitTimeSecondMicro = "Microsecond"
-UnitTimeSecondNano = "Nanosecond"
-UnitTimeMinute = "Minute"
-UnitTimeHour = "Hour"
-UnitTimeDay = "Day"
-UnitTimeWeek = "Week"
-UnitTimeMonth = "Month"
-UnitTimeYear = "Year"
-UnitDistanceMenu = "Distance"
-UnitDistanceMeterMenu = "Meter"
-UnitDistanceMeterKilo = "Kilometer"
-UnitDistanceMeter = "Meter"
-UnitDistanceMeterMilli = "Millimeter"
-UnitDistanceMeterMicro = "Micrometer"
-UnitDistanceMeterNano = "Nanometer"
-UnitDistanceMeterPico = "Picometer"
-UnitDistanceAstronomicalUnit = "Astronomical unit"
-UnitDistanceLightYear = "Light year"
+Unit = "Unidade"
+UnitTimeMenu = "Tempo"
+UnitTimeSecondMenu = "Segundo"
+UnitTimeSecond = "Segundo"
+UnitTimeSecondMilli = "Milisegundo"
+UnitTimeSecondMicro = "Microsegundo"
+UnitTimeSecondNano = "Nanosegundo"
+UnitTimeMinute = "Minuto"
+UnitTimeHour = "Hora"
+UnitTimeDay = "Dia"
+UnitTimeWeek = "Semana"
+UnitTimeMonth = "Mês"
+UnitTimeYear = "Ano"
+UnitDistanceMenu = "Distância"
+UnitDistanceMeterMenu = "Metro"
+UnitDistanceMeterKilo = "Quilómetro"
+UnitDistanceMeter = "Metro"
+UnitDistanceMeterMilli = "Milímetro"
+UnitDistanceMeterMicro = "Micrómetro"
+UnitDistanceMeterNano = "Nanómetro"
+UnitDistanceMeterPico = "Picómetro"
+UnitDistanceAstronomicalUnit = "Unidade astronómica"
+UnitDistanceLightYear = "Ano-luz"
 UnitDistanceParsec = "Parsec"
-UnitMassMenu = "Mass"
-UnitMassGramKilo = "Kilogram"
-UnitMassGram = "Gram"
-UnitMassGramMilli = "Milligram"
-UnitMassGramMicro = "Microgram"
-UnitMassGramNano = "Nanogram"
-UnitMassTonne = "Tonne"
-UnitCurrentMenu = "Electric current"
+UnitMassMenu = "Massa"
+UnitMassGramKilo = "Quilograma"
+UnitMassGram = "Grama"
+UnitMassGramMilli = "Miligrama"
+UnitMassGramMicro = "Micrograma"
+UnitMassGramNano = "Nanograma"
+UnitMassTonne = "Tonelada"
+UnitCurrentMenu = "Intensiadade da currente elétrica"
 UnitCurrentAmpere = "Ampere"
-UnitCurrentAmpereMilli = "Milliampere"
+UnitCurrentAmpereMilli = "Miliampere"
 UnitCurrentAmpereMicro = "Microampere"
-UnitTemperatureMenu = "Temperature"
+UnitTemperatureMenu = "Temperatura"
 UnitTemperatureKelvin = "Kelvin"
-UnitAmountMenu = "Amount of substance"
+UnitAmountMenu = "Quantidade da substância"
 UnitAmountMole = "Mole"
-UnitAmountMoleMilli = "Millimole"
+UnitAmountMoleMilli = "Milimole"
 UnitAmountMoleMicro = "Micromole"
-UnitLuminousIntensityMenu = "Luminous intensity"
+UnitLuminousIntensityMenu = "Intensidade luminosa"
 UnitLuminousIntensityCandela = "Candela"
 UnitFrequencyMenu = "Frequency"
 UnitFrequencyHertzGiga = "Gigahertz"
 UnitFrequencyHertzMega = "Megahertz"
 UnitFrequencyHertzKilo = "Kilohertz"
 UnitFrequencyHertz = "Hertz"
-UnitForceMenu = "Force"
+UnitForceMenu = "Força"
 UnitForceNewtonKilo = "Kilonewton"
 UnitForceNewton = "Newton"
-UnitForceNewtonMilli = "Millinewton"
-UnitPressureMenu = "Pressure"
+UnitForceNewtonMilli = "Milinewton"
+UnitPressureMenu = "Pressão"
 UnitPressurePascal = "Pascal"
 UnitPressurePascalHecto = "Hectopascal"
 UnitPressureBar = "Bar"
-UnitPressureAtm = "Atmosphere"
-UnitEnergyMenu = "Energy"
+UnitPressureAtm = "Atmosfera"
+UnitEnergyMenu = "Energia"
 UnitEnergyJouleMenu = "Joule"
 UnitEnergyJouleKilo = "Kilojoule"
 UnitEnergyJoule = "Joule"
-UnitEnergyJouleMilli = "Millijoule"
-UnitEnergyEletronVoltMenu = "Electronvolt"
-UnitEnergyElectronVoltMega = "Megaelectronvolt"
-UnitEnergyElectronVoltKilo = "Kiloelectronvolt"
-UnitEnergyElectronVolt = "Electronvolt"
-UnitEnergyElectronVoltMilli = "Millielectronvolt"
-UnitPowerMenu = "Power"
+UnitEnergyJouleMilli = "Milijoule"
+UnitEnergyEletronVoltMenu = "Eletrão-volt"
+UnitEnergyElectronVoltMega = "Megaeletrão-volt"
+UnitEnergyElectronVoltKilo = "Kiloeletrão-volt"
+UnitEnergyElectronVolt = "Eletrão-volt"
+UnitEnergyElectronVoltMilli = "Milieletrão-volt"
+UnitPowerMenu = "Potência"
 UnitPowerWattGiga = "Gigawatt"
 UnitPowerWattMega = "Megawatt"
 UnitPowerWattKilo = "Kilowatt"
 UnitPowerWatt = "Watt"
-UnitPowerWattMilli = "Milliwatt"
+UnitPowerWattMilli = "Miliwatt"
 UnitPowerWattMicro = "Microwatt"
-UnitElectricChargeMenu = "Electric charge"
+UnitElectricChargeMenu = "Carga elétrica"
 UnitChargeCoulomb = "Coulomb"
-UnitPotentialMenu = "Electric potential"
+UnitPotentialMenu = "Potência elétrica"
 UnitPotentialVoltKilo = "Kilovolt"
 UnitPotentialVolt = "Volt"
-UnitPotentialVoltMilli = "Millivolt"
+UnitPotentialVoltMilli = "Milivolt"
 UnitPotentialVoltMicro = "Microvolt"
-UnitCapacitanceMenu = "Electrical capacitance"
+UnitCapacitanceMenu = "Capacidade elétrica"
 UnitCapacitanceFarad = "Farad"
-UnitCapacitanceFaradMilli = "Millifarad"
+UnitCapacitanceFaradMilli = "Milifarad"
 UnitCapacitanceFaradMicro = "Microfarad"
-UnitResistanceMenu = "Electrical resistance"
+UnitResistanceMenu = "Resistência elétrica"
 UnitResistanceOhmKilo = "Kiloohm"
 UnitResistanceOhm = "Ohm"
-UnitConductanceMenu = "Electrical conductance"
+UnitConductanceMenu = "Condutância elétrica"
 UnitConductanceSiemens = "Siemens"
-UnitConductanceSiemensMilli = "Millisiemens"
-UnitMagneticFieldMenu = "Magnetic field"
+UnitConductanceSiemensMilli = "Milisiemens"
+UnitMagneticFieldMenu = "Campo magnético"
 UnitMagneticFieldTesla = "Tesla"
-InductanceMenu = "Electrical inductance"
+InductanceMenu = "Indutância"
 UnitInductanceHenry = "Henry"
-UnitSurfaceMenu = "Area"
+UnitSurfaceMenu = "Área"
 UnitSurfaceHectar = "Hectare"
 UnitVolumeMenu = "Volume"
-UnitVolumeLiter = "Liter"
-UnitVolumeLiterDeci = "Deciliter"
-UnitVolumeLiterCenti = "Centiliter"
-UnitVolumeLiterMilli = "Milliliter"
+UnitVolumeLiter = "Litro"
+UnitVolumeLiterDeci = "Decilitro"
+UnitVolumeLiterCenti = "Centilitro"
+UnitVolumeLiterMilli = "Mililitro"
 Toolbox = "Caixa de ferramentas"
 AbsoluteValue = "Valor absoluto"
-NthRoot = "Radiciacao"
+NthRoot = "Raiz de índice n"
 BasedLogarithm = "Logaritmo na base a"
 Calculation = "Cálculo"
 ComplexNumber = "Números complexos"
-Combinatorics = "Combinatoria"
+Combinatorics = "Combinatória"
 Arithmetic = "Aritmética"
 Matrices = "Matrizes"
 NewMatrix = "Nova matriz"
@@ -140,7 +140,7 @@ Maximum = "Máximo"
 Minimum = "Mínimo"
 Floor = "Parte inteira"
 FracPart = "Parte fraccionaria"
-Ceiling = "Tecto"
+Ceiling = "Teto"
 Rounding = "Arredondar"
 HyperbolicCosine = "Cosseno hiperbólico"
 HyperbolicSine = "Seno hiperbólico"