TCP Window Size
Calculate TCP Window Size instantly with the exact formula and a worked example.
TCP Window Size
BandwidthMbps
RTTms
TCP Window
6,250KB
More about: TCP Window Size
What it calculates
The “TCP Window Size” calculator computes TCP Window in KB from 2 parameters: bandwidth (Mbps), rtt (ms).
Standard IT calculations for developers and sysadmins.
Example calculation
With parameters Bandwidth = 1,000 Mbps, RTT = 50 ms the result is 6,250 KB.
How to use
- Enter bandwidth and rtt — each field above is adjustable with a slider.
- TCP Window (KB) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is TCP Window Size calculated?
The TCP Window Size calculator computes TCP Window (in KB) from bandwidth, rtt. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the TCP Window Size calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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