Sterba   Speed test links:
For systems
with Flash
Typical Windows PC
and Linux/Ubuntu.
For systems
without Flash
For some Android
and all Mac / iOS.
Comcast
Speedtest
AT&T
Speedtest

CONVERSION CALCULATOR
between K/s, Kbps, Mbps, etc.



Your service provider may purposely
be slowing down your connection...

Read more about this:

Is your service provider
slowing down your Netflix?

Make your connection faster

Engadget article