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Bandwidth Delay Product Calculator

Find the bandwidth-delay product of a link.

Calculated Output

Bandwidth-delay product (KB) 488.28

In bits (bits) 4,000,000

Formula: BDP = bandwidth * RTT

Step-by-Step Breakdown

1. Values used:

2. Bandwidth = 100 Mbps

3. Round-trip time = 40 ms

5. Bandwidth-delay product = 488.28KB

6. In bits = 4,000,000bits

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The math behind it

BDP = bandwidth x round-trip time. It sets the ideal TCP window size for full throughput.

100 Mbps with 40 ms RTT gives about 488 KB.

Why does it matter?

If the TCP window is smaller than the BDP, you can't fill the pipe.