How much bandwidth a month would be used if you constantly used 100kbps 24/7 ? Whats the formula to figure this out?

8bits/sec / 8 = 1Byte/sec
100kbits/sec / 8 = 12.5kBytes/sec

60sec = 1minute
60 minutes = 1hour
24hours = 1day
30.5 days = 1 month (give or take)

12.5kBytes/sec * (60 * 60 * 24 * 30.5)sec = 32,940,000kBytes

32,940,000kBytes / 1024kBytes/MB = 32,167.96875MB

32,167.96875MB / 1024MB/GB = 31.4140GB

100kbit/s = 31.4140GB/mo

So essentially: x kbit/s * .314140 = y GB/mo

That look right to everyone else?

Generally (and roughly):
128kbit/s = 40GB
256kbit/s = 80GB
1MBit/s = 320GB

thanks