diff --git a/README.md b/README.md
new file mode 100644
index 0000000..eec14e8
Binary files /dev/null and b/README.md differ
diff --git a/icon.ico b/icon.ico
new file mode 100644
index 0000000..174ba36
Binary files /dev/null and b/icon.ico differ
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..4befa28
--- /dev/null
+++ b/main.py
@@ -0,0 +1,76 @@
+from tkinter import *
+import os, sys
+import tkinter.font as font 
+expression = ""
+def gui():
+    global output
+    window = Tk()
+    window.geometry("223x331")
+    calcfont = font.Font(size = 15)
+    output = StringVar()
+    window.title("Calculator")
+    window.iconbitmap(resource_path("icon.ico"))
+    window.configure(background="black")
+    outputfield = Entry(window,font=calcfont, textvariable=output, bg = "black", fg = "white") .grid(column = 0,row = 0, columnspan=4, sticky=W, ipady=5)
+    button1 = Button(window, text = ' 1 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(1), width= 4, height=2  ) .grid(row = 1, column = 0 )
+    button2 = Button(window, text = ' 2 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(2), width= 4, height=2  ) .grid(row = 1, column = 1 )
+    button3 = Button(window, text = ' 3 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(3), width= 4, height=2  ) .grid(row = 1, column = 2 )
+    button4 = Button(window, text = ' 4 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(4), width= 4, height=2  ) .grid(row = 2, column = 0 )
+    button5 = Button(window, text = ' 5 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(5), width= 4, height=2  ) .grid(row = 2, column = 1 )
+    button6 = Button(window, text = ' 6 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(6), width= 4, height=2  ) .grid(row = 2, column = 2 )
+    button7 = Button(window, text = ' 7 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(7), width= 4, height=2  ) .grid(row = 3, column = 0 )
+    button8 = Button(window, text = ' 8 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(8), width= 4, height=2  ) .grid(row = 3, column = 1 )
+    button9 = Button(window, text = ' 9 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(9), width= 4, height=2  ) .grid(row = 3, column = 2 )
+    button0 = Button(window, text = ' 0 ', bg = "black", fg = "white",font=calcfont ,command = lambda: numpress(0), width= 4, height=2  ) .grid(row = 4, column = 1 )
+    decimalbutton = Button(window, text = ' . ', bg = "black", fg = "white",font=calcfont,command = lambda: numpress('.'), width= 4, height=2 ) .grid(row = 4, column = 0 )
+    addbutton = Button(window, text = ' + ', bg = "black", fg = "white",font=calcfont, command = lambda: numpress(' + '), width=4, height=2 ) .grid(row = 4, column = 3 )
+    substractbutton = Button(window, text = ' - ', bg = "black", fg = "white",font=calcfont, command = lambda: numpress(' - '), width=4, height=2 ) .grid(row = 1, column = 3 )
+    dividebutton = Button(window, text = ' / ', bg = "black", fg = "white",font=calcfont, command = lambda: numpress(' / '), width=4, height=2) .grid(row = 2, column = 3 )
+    multiplybutton = Button(window, text = ' * ', bg = "black", fg = "white",font=calcfont, command = lambda: numpress(' * '), width=4, height=2) .grid(row = 3, column = 3 )
+    equalsbutton = Button(window, text = ' = ', bg = "black", fg = "white",font=calcfont, command = lambda: equals(), width = 4, height=2) .grid (row = 4, column = 2)
+    clearbutton = Button(window, text = ' C ', bg = "black", fg = "white",font=calcfont, command = lambda: clear(), width = 4, height=1) .grid (row = 5, column = 0)
+    binarybutton = Button(window, text = ' bin ', bg = "black", fg = "white",font=calcfont, command = lambda: nums(2), width = 4, height=1) .grid (row = 5, column = 1)
+    hexbutton = Button(window, text = 'hex', bg = "black", fg = "white",font=calcfont, command = lambda: nums(16), width = 4, height=1) .grid (row = 5, column = 2)
+    octbutton = Button(window, text = 'oct', bg = "black", fg = "white",font=calcfont, command = lambda: nums(8), width = 4, height=1) .grid (row = 5, column = 3)
+    window.mainloop()
+def nums(fun):
+    global expression
+    if expression != "":
+        if fun == 2:
+            total = ''.join([i for i in bin(int(expression))[2:]])
+        if fun == 16:
+            total = ''.join([i for i in hex(int(expression))[2:]])
+        if fun == 8:
+            total = ''.join([i for i in oct(int(expression))[2:]])
+        expression = ""
+        output.set(total)
+def numpress(num): 
+    global expression
+    expression = expression + str(num)
+    output.set(expression)   
+def equals():
+    global expression
+    if expression != "":
+        try:
+            total = str(eval(expression))
+            output.set(total)
+            expression = str(total)
+        except Exception as e :
+            output.set(f"{e}")
+            expression = ""
+    else: clear()
+def clear():
+    global expression
+    expression = ""
+    output.set("")
+def resource_path(relative_path): # icon in pyinstaller
+    """ Get absolute path to resource, works for dev and for PyInstaller """
+    try:
+        # PyInstaller creates a temp folder and stores path in _MEIPASS
+        base_path = sys._MEIPASS
+    except Exception:
+        base_path = os.path.abspath(".")
+
+    return os.path.join(base_path, relative_path)   
+if __name__ == "__main__":
+    gui()