#show title and list conversions
print "haxanon general calculator v0.1"
print ""
print "1 - Kilometres per hour -> Miles per hour"
print "2 - Miles per hour -> Kilometres per hour"
print "3 - Knots -> Miles per hour"
print "4 - Miles per hour -> Knots"
print ""

line = "******************************************"

#ask for convertion number
number = input("Please select a convertion > ")
print ""
#work out what number the user enter and carry out calculations
if number == 1:
    print "You selected Kilometres per hour -> Miles per hour"
    print ""
    inp1 = input("Enter the km/h > ")
    out = inp1*0.621
    print ""
    print line
    print "  ",inp1,"km/h equals", out,"mph"
    print line
elif number == 2:
    print "You selected Miles per hour -> Kilometres per hour"
    print ""
    inp1 = input("Enter the mph > ")
    out = inp1*1.609
    print ""
    print line
    print "  ",inp1,"mph equals", out,"km/h"
    print line
elif number == 3:
    print "You selected Knots -> Miles per hour"
    print ""
    inp1 = input("Enter the Knots > ")
    out = inp1*1.151
    print ""
    print line
    print "  ",inp1,"Knots equals", out,"mph"
    print line
elif number == 4:
    print "You selected Miles per hour -> Knots"
    print ""
    inp1 = input("Enter the mph > ")
    out = inp1*1.001
    print ""
    print line
    print "  ",inp1,"mph equals", out,"Knots"
    print line
else:
    print "Sorry, that is not a valid conversion number"