bfb86586_Test___Test_Your_ISP_Bandwidth__Why_It_Matters
[What's Measured] Upload Speed [What Is It?] The capacity of information that can be sent by your computer to the Internet. [How It's Measured] Measured in Mbps (Megabits per second) To convert to kbps (kilobits per second), multiply by 1000. [Why It Matters] 
Critical for VoIP calls, sending large files, and hosting websites. Most residential and cable services are asymmetric with lower upload transfer rates than download.
MegaPath Bandwidth Test | Test Your ISP Bandwidth
Why It Matters