Network Throughput Calculator

Use this network throughput calculator to estimate your TCP performance and file transfer times based on your connection’s bandwidth, latency, and other network parameters.

Understanding network throughput is essential for predicting real-world file transfer performance. While your connection may advertise a certain bandwidth, the actual throughput you achieve depends on multiple factors including round-trip time (RTT), packet loss, and TCP window size limitations. This calculator accounts for these variables to provide a more accurate estimate of your effective throughput.

The results show various throughput limitations that may bottleneck your connection. The “Expected maximum TCP throughput” represents the most restrictive factor – whether that’s your available bandwidth, TCP overhead, packet loss, or window size constraints. By analyzing these different throughput metrics, you can identify potential network optimizations to improve your actual transfer speeds and overall network performance.