Networking & IT Tools
Network Bandwidth / Download Time Calculator
Enter a file size and connection speed to estimate download or transfer time.
13m 20s
Estimated download/transfer time
Assumes the full connection speed is available with no overhead — real transfers are usually somewhat slower due to network conditions and protocol overhead. Remember: Mbps (megabits) and MB/s (megabytes) differ by a factor of 8.
How to use this tool
- 1Enter the file size in GB.
- 2Enter your connection speed in Mbps.
- 3See the estimated transfer time.
Frequently asked questions
Why is my download slower than my advertised speed suggests?+
Advertised speeds are usually in megabits per second (Mbps), while file sizes are in megabytes (MB) — 1 byte = 8 bits, so actual download speed in MB/s is roughly your Mbps divided by 8, plus real-world overhead.