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Bandwidth Calculator
About the Bandwidth Calculator
Find how long it takes to transfer a file at a given connection speed.
How to use the Bandwidth Calculator
- Enter the Data Size and its unit, and the Speed with its unit.
- Press Solve Transfer Time.
Formula and method
Time = size in bits ÷ speed in bits per second. 1 byte = 8 bits.
Worked example
1 GB (8,000 megabits) at 100 Mbps takes 80 seconds.
Tips
- Real speeds are usually lower than the advertised speed because of overhead.
Frequently Asked Questions
Network overhead, Wi-Fi quality, server limits and congestion all lower real speeds.