Download Time Calculator
Enter a file size and your internet speed to see exactly how long the download or upload will take.
Same file at other speeds
| Connection | Speed | Time |
|---|
Calculated in your browser.
How to use the Download Time Calculator
Enter the file size
KB, MB, GB or TB.
Enter your speed
Mbps, Gbps, MB/s…
See the time
Plus a comparison of common speeds.
Why use our Download Time Calculator?
Exact time
Hours, minutes and seconds.
Mbps ↔ MB/s
Understand bits vs bytes.
Speed comparison
3G, 4G, 5G, DSL, cable and fiber.
Overhead
Account for real-world network overhead.
Presets
Movies, games, photos and backups.
Instant
Updates as you type.
Frequently asked questions
Everything you need to know about the Download Time Calculator.
Back to the toolWhat is the difference between Mbps and MB/s?
Mbps is megabits per second, MB/s is megabytes per second. 1 byte = 8 bits, so 100 Mbps ≈ 12.5 MB/s.
Why is my download slower than calculated?
Real speeds are lower because of network overhead, Wi-Fi quality, server speed and other devices on your network.
How long does 1 GB take at 10 Mbps?
About 14 minutes without overhead.
What overhead should I use?
About 10% is realistic for most connections.
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