Calculate VPN protocol overhead as percentage of raw bandwidth. WireGuard adds ~3-4% overhead; OpenVPN UDP ~5-10%; IPsec ~5%; SSL VPN ~15-20% depending on encryption.
The VPN Bandwidth Overhead Calculator works by applying a well-defined formula to the values you enter. Understanding the formula behind the calculation helps you interpret the result and check that your inputs are correct. Below we break down the key components that drive the VPN Bandwidth Overhead.
The core formula used by this calculator is:
Result = f(inputs, settings)
Each variable in the formula has a specific meaning: