Download Time Calculator
Estimate how long a file takes to download at your connection speed.
Your details
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How the download time calculator works
Speeds are advertised in megabits while files are measured in megabytes — divide by eight, then allow for protocol overhead.
Formula
seconds = size (Mb) ÷ effective speed (Mbps)
Worked example
An 8 GB file on a 100 Mbps line with 10% overhead takes about 11 minutes.
Frequently asked questions
Why is my download slower than advertised?
Overhead, server limits, Wi-Fi and congestion all reduce real throughput.