Why does this matter for TCP performance?

If TCP window size is smaller than the bandwidth-delay product, the connection can't fully utilize available bandwidth, since the sender must wait for acknowledgments before sending more data.

Bandwidth-Delay Product Calculator

The bandwidth-delay product estimates how much data can be 'in flight' on a network link at any moment, informing optimal TCP buffer sizing.

Inputs

Results

Bandwidth-Delay Product: 625,000 bytes

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Formula

BDP (bytes) = Bandwidth(bps) × RTT(s) / 8

Learn How This Works

Network Performance Diagnostics: Packet Loss, Latency, and Buffer Sizing

Packet loss percentage, round-trip latency, bandwidth-delay product, and packet transmission time — four calculations for diagnosing network performance.

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