How Long to Upload 100 GB at 10 Mbps?

With a 10 Mbps upload connection, a 100 GB file takes approximately 22h 45m 20s under ideal conditions.

Why does a 100 GB upload take 22h 45m 20s at 10 Mbps?

Upload speed is measured in megabits per second (Mbps), while file size is measured in megabytes (MB) or gigabytes (GB). Since 1 byte = 8 bits, you divide your file's size in megabytes by your speed in megabits, then multiply by 8 to get the transfer time in seconds.

For 100 GB (102,400 MB) at 10 Mbps: 102,400 MB × 8 ÷ 10 Mbps = 81,920 seconds ≈ 22h 45m 20s

In practice, network overhead, protocol headers, and ISP throttling reduce effective throughput to about 80% of your advertised speed — making the realistic upload time closer to 1d 4h 26m. If you're on Wi-Fi instead of Ethernet, expect even longer due to signal interference.

100 GB upload time at different speeds

Different file sizes at 10 Mbps

Upload 100 GB at other speeds

Other file sizes at 10 Mbps