ToolsFaction Online Tool
Bandwidth Calculator
Estimate ideal file transfer and download duration.
Estimate file download or transfer time from file size and Mbps or Gbps connection speed.
About This Tool
ToolsFaction Bandwidth Calculator estimates ideal transfer duration by converting file size to bits and dividing by connection bitrate. Real transfers can be slower because of protocol overhead, congestion, latency and storage performance.
How to Use
- Enter the file size.
- Choose MB, GB or TB.
- Enter the connection speed and unit.
- Calculate the theoretical transfer time.
Example
Estimate how long a 1 GB file would take over a 100 Mbps connection under ideal conditions.
Frequently Asked Questions
Is the result an exact download time?
No. It is a theoretical estimate.
Why can real downloads be slower?
Protocol overhead, network congestion, latency, server limits and storage performance can reduce throughput.
Does Mbps mean megabytes per second?
No. Mbps means megabits per second.
Can it calculate Gbps speeds?
Yes.
Free to UseNo hidden fees
No Sign-UpStart instantly
Browser-BasedNothing to install
Privacy FriendlyBuilt for simple use