What is the difference between MB and MiB?

MB (megabyte) is base-10, 1,000,000 bytes, while MiB (mebibyte) is base-2, 1,048,576 bytes. This tool reports both.

How is download time estimated?

It divides the file size in bits by your connection speed in megabits per second, then adds a small overhead for real-world conditions.

No. Every conversion happens locally in your browser tab.

Free · No sign-up

Convert any file size instantly and see how long it takes to download.

Value Unit

Connection speed (Mbps)