Estimate the window-limited throughput of a TCP connection.
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Connection parameters
16-bit window field: 1–65,535 bytes.
Effective window = window × 2^scale. Use 0 for no scaling.
Theoretical throughput
Window-limited throughput
10.4856 Mbit/s
Effective window
65,535 bytes
Bytes per second
1,310,700
Formula
window bytes × 2^scale × 8 ÷ RTT seconds
An upper bound from receive window and RTT only. Actual throughput also depends on congestion window, loss, bottleneck bandwidth, protocol overhead, and the application.