Download Time Calculator
How long will it take to download a file at your internet speed? Enter a size and your Mbps — or pick a preset.
Quick answer: time = file bits ÷ speed bits/sec. Because
1 byte = 8 bits, a 100 Mbps connection moves ~12.5 MB/s, so a 1 GB file takes ~80 s in the best case. Real downloads are slower (Wi-Fi, overhead, the server).
—
theoretical best case
Slow downloads at home?
A faster router or mesh system often helps more than a bigger plan. See current picks.
Best home network gadgets →25 GB 4K movie — by speed
| Speed | Time |
|---|---|
| 25 Mbps | ~2.2 hours |
| 100 Mbps | ~33 min |
| 300 Mbps | ~11 min |
| 1 Gbps | ~3.3 min |