Compute required TCP receive window size (RWIN)

Bandwidth

kbps

Latency

ms

bytes

Bandwidth is your advertised (download) speed.
Latency (i.e. delay) should be your large packet ping time. Multiply yours by 1.5 for this tool.

Feedback received on this FAQ entry:

• RWIN Calculator (#677) (No longer here because it doesn't work on this site.)

  2009-01-06 14:42:06 (DionisBah )

• 1. In RWIN Calculater, kbps = Kilo bits per second or Kilo bytes per second? 2. only 4 digits can be entered in the RWIN Calculator Thanks.

  2009-05-10 15:37:45

• Time to update! Had to use 9999 kbps for 10 Mbps connection. :)

  2009-06-09 01:52:41

• Time to update _again_! Had to use 99999 kbps for 100 Mbps connection.. ;o

  2009-08-18 16:43:39 (PingPong3 )

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edited by redxii
last modified: 2009-06-10 18:52:01