Mobile data/voice cost comparison

mobile_voice_data.py

AMR = {'12.20':12.20}

def calculate_data_mb(minutes=10, kbps=AMR['12.20']):
    seconds = minutes*60
    kilobits = (kbps*seconds) / 8.0
    mb = float(kilobits) / 1024.0
    return mb

def data_transfer_in_minutes(transfergb=0.134, kbps=AMR['12.20']):
    gbits = transfergb * 1024**3 * 8.0
    seconds = (gbits / (kbps * 1024.0))
    return seconds / 60.0

minutes = 1500
mb = calculate_data_mb(minutes)
print("%d minutes = %.3f mb" % (minutes, mb))
assert data_transfer_in_minutes(mb / 1024.0) == minutes

data = 1
print("%.3f gb = %.2f minutes" % (data, data_transfer_in_minutes(data)))

# 1500 minutes = 134.033 mb
# 1.000 gb = 11459.85 minutes