Ideal line-rate time and an adjustable real-world estimate for this file and connection.
with 10% network overhead
Ideal line-rate time: 1h 6m 40s
| Speed | Adjusted time |
|---|---|
| 10 Mbps | 1d 41m |
| 25 Mbps | 9h 52m 36s |
| 50 Mbps | 4h 56m 18s |
| 100 Mbps | 2h 28m 9s |
| 200 Mbps | 1h 14m 4s |
| 500 Mbps | 29m 38s |
| 1000 Mbps | 14m 49s |
Download time equals file size in bits divided by effective connection speed. 100 GB is 800,000 megabits using decimal SI units.
The ideal result assumes sustained line speed. The adjusted estimate reduces effective speed by the selected overhead percentage to represent protocol overhead and ordinary network loss. Server limits, Wi-Fi quality, and congestion can add more time.
Units reviewed July 2026 against the NIST SI reference.