Download Time Calculator

Estimate how long a download will take based on your connection speed and file size.

Download speed

Most ISPs advertise bandwidth in Mbps (megabits per second).

File size

1 GB ≈ 1024 MB.

Real-world efficiency

Accounts for protocol overhead and network congestion. Typical real throughput is 80–95% of advertised speed.

Results:

Enter your connection speed and file size, then click Calculate to see the estimated download time.

Using our Download Time Calculator

Curious how long it will take to download a file with your current internet speed? Our Download Time Calculator makes it simple to calculate download time based on the file size and your internet connection speed. Whether you’re downloading a small document in MB or a large video file in GB, this tool helps you estimate download times in seconds. Just input the size of the file and your connection speed in megabits per second (Mbps) to instantly see how long it will take to download — whether you’re on a lightning-fast 100 Mbps connection or something slower.

Perfect for professionals, gamers, and anyone trying to manage their bandwidth, this tool gives you a clear picture of your actual download experience. It’s ideal for estimating how long it takes to download a file of any size, helping you plan around your internet speed. Whether you’re on fiber, cable, or mobile data, this calculator ensures you’re never guessing how long it will take. Instead, you’re using real data to calculate download time with confidence and accuracy.