diff --git a/__pycache__/filtre_gui.cpython-37.pyc b/__pycache__/filtre_gui.cpython-37.pyc
new file mode 100644
index 0000000..3c2d112
Binary files /dev/null and b/__pycache__/filtre_gui.cpython-37.pyc differ
diff --git a/filtre.py b/filtre.py
index 37d6917..ed8e403 100644
--- a/filtre.py
+++ b/filtre.py
@@ -6,7 +6,12 @@ def signals(self):
     self.calculer_pushbutton.clicked.connect(self.calc)
 
 def calc(self):
-    frequence = int(self.freqCp_lineedit.text())
+    if( self.uniteFreq_combobox.currentIndex() == 0):
+        frequence = int(self.freqCp_lineedit.text())*1000
+    elif (self.uniteFreq_combobox.currentIndex() ==1):
+        frequence = int(self.freqCp_lineedit.text())*1000000
+    elif (self.uniteFreq_combobox.currentIndex()== 2):
+        frequence = int(self.freqCp_lineedit.text())*1000000000
     amplitude = float(self.amplitude_lineedit.text())
     impedance = float(self.impEntree_lineedit.text())
     ordre = int(self.ordre_lineedit.text())
diff --git a/filtre_gui.py b/filtre_gui.py
index 28cb770..7126fc3 100644
--- a/filtre_gui.py
+++ b/filtre_gui.py
@@ -58,7 +58,7 @@ class Ui_MainWindow(object):
         self.ordre_lineedit.setGeometry(QtCore.QRect(200, 124, 140, 20))
         self.ordre_lineedit.setObjectName("ordre_lineedit")
         self.freqCp_lineedit = QtWidgets.QLineEdit(self.centralwidget)
-        self.freqCp_lineedit.setGeometry(QtCore.QRect(200, 46, 140, 20))
+        self.freqCp_lineedit.setGeometry(QtCore.QRect(200, 46, 80, 20))
         self.freqCp_lineedit.setObjectName("freqCp_lineedit")
         self.effacer_pushbutton = QtWidgets.QPushButton(self.centralwidget)
         self.effacer_pushbutton.setGeometry(QtCore.QRect(22, 150, 145, 23))
@@ -72,6 +72,12 @@ class Ui_MainWindow(object):
         self.amplitude_label = QtWidgets.QLabel(self.centralwidget)
         self.amplitude_label.setGeometry(QtCore.QRect(22, 72, 171, 16))
         self.amplitude_label.setObjectName("amplitude_label")
+        self.uniteFreq_combobox = QtWidgets.QComboBox(self.centralwidget)
+        self.uniteFreq_combobox.setGeometry(QtCore.QRect(290, 46, 50, 20))
+        self.uniteFreq_combobox.setObjectName("uniteFreq_combobox")
+        self.uniteFreq_combobox.addItem("")
+        self.uniteFreq_combobox.addItem("")
+        self.uniteFreq_combobox.addItem("")
         MainWindow.setCentralWidget(self.centralwidget)
         self.statusbar = QtWidgets.QStatusBar(MainWindow)
         self.statusbar.setObjectName("statusbar")
@@ -105,7 +111,10 @@ class Ui_MainWindow(object):
         self.amplitude_lineedit.setToolTip(_translate("MainWindow", "amplitude"))
         self.calculer_pushbutton.setStatusTip(_translate("MainWindow", "Calculer le résultat"))
         self.calculer_pushbutton.setText(_translate("MainWindow", "Calculer"))
-        self.amplitude_label.setText(_translate("MainWindow", "Amplitude (V)"))
+        self.amplitude_label.setText(_translate("MainWindow", "Amplitude (dB)"))
+        self.uniteFreq_combobox.setItemText(0, _translate("MainWindow", "kHz"))
+        self.uniteFreq_combobox.setItemText(1, _translate("MainWindow", "MHz"))
+        self.uniteFreq_combobox.setItemText(2, _translate("MainWindow", "GHz"))