Download time calculator
Estimate download time from file size, connection rate and usable bandwidth.
Let’s run the numbers
USDTHE NUMBERS, MADE CLEARInstant calculation
＝
Your answer starts here
Check your inputs and select Calculate.
1 byte = 8 bits; MB = 10⁶ bytes and MiB = 2²⁰ bytes. Real time depends on the network, server and protocol overhead. Usable bandwidth lets you estimate these losses; this is not a speed test.
Common uses
Estimate download time from file size, connection rate and usable bandwidth.
BEHIND THE NUMBERSFormula & assumptions
t = 8 × bytes / (bits/s × efficiency/100)
1 byte = 8 bits; MB = 10⁶ bytes and MiB = 2²⁰ bytes. Real time depends on the network, server and protocol overhead. Usable bandwidth lets you estimate these losses; this is not a speed test.