Bandwidth-Delay Product Calculator

Calculate the bandwidth-delay product in bytes and the suggested TCP window size from link bandwidth and round-trip time

Frequently Asked Questions

What is the bandwidth-delay product?

It is the amount of data that can be in flight on a link at once, equal to bandwidth times round-trip time. Think of it as the volume the network pipe holds.

How does BDP relate to TCP window size?

A TCP connection can only have as much unacknowledged data outstanding as its window allows. Setting the window equal to or greater than the BDP lets a single connection fill the link.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.