How much should I pay for 100Mbps?

Your webhost probably isn’t charging you for speed (i.e. 100Mbs). They are probably charging you for data transfer of 100 gigs.

How much are they charging you?

All the GB/month (actually TB/month – we’re pushing about 20TB/month; with traffic peaking at just about 100Mbps in the middle of the day) quotes we got were higher than the corresponding Mbps quotes. I’ve been getting quotes of $0.12/GB which would be more than the Mbps based quotes I’ve seen.

Your equation doesnt look right when I do the math. First off if you are peaking at 100Mbps during the day a 100Mbps pipe will choke, it will do this around 80Mbps. Difference between theorectical and actual throughputs. Also if you do the math on $.12/GB translating into a Mbps monthly charge it comes out to roughly $3888.00 per month about 3x what a metro 100Mbps pipe runs. What appears to be happening here is a flex pipe type of agreement where you pay transfer rates and not set pipe allocation rates

Peak is actually just about 110Mbps. We can burst to 1Gbps, charged at 95%. Lows at night are more like 12Mbps. And yes – that roughly $4K/month is what’s motivating me to ask such questions in the first place.

The equation I was playing with was 20TB/month = ~ 20 * 1000 * 1000 * 8 / 30 / 24 / 60 / 60 = 61Mbps_average. Which seems inline with peaks of very roughly 100Mbps.

Thanks for the confirmation of my suspicion that we’re paying roughly 3X what we could be.