Download Time Calculator
Calculate how long a download will take at your internet speed. Free download time estimator for files of any size.
Note: connection speeds are in bits, file sizes in bytes. 100 Mbps downloads about 12.5 MB per second.
Frequently asked questions
- Why is my download slower than expected?
- Advertised speeds are in bits while file sizes are in bytes, so divide by 8. Protocol overhead and Wi-Fi further reduce real throughput.
- What speed should I enter?
- Your plan speed in Mbps, or run a speed test and use the result. 1 Gbps is 1000 Mbps.
- Does it work for large files?
- Yes, sizes up to TB are supported and results are shown in seconds, minutes or hours as appropriate.
- How accurate is the estimate?
- It assumes a steady connection. Real downloads fluctuate with congestion, server load and Wi-Fi signal.
This tool runs entirely in your browser. No data is uploaded anywhere.