Why does real-world download take longer than raw speed divided by file size?

Real-world network connections carry TCP/IP packet headers, handshakes, retransmissions, and latency. The calculator includes a 5-10% packet overhead slider to mirror real conditions.

What is the difference between Mbps and MB/s?

Mbps stands for megabits per second (usually advertised by Internet Service Providers), while MB/s stands for megabytes per second (used for file sizes). 1 MB/s equals 8 Mbps.

Can I estimate how much data streaming video consumes?

Yes. Use the data volume section to calculate total gigabytes consumed when streaming or downloading at a given speed over hours.

Why does real-world download take longer than raw speed divided by file size?

Real-world network connections carry TCP/IP packet headers, handshakes, retransmissions, and latency. The calculator includes a 5-10% packet overhead slider to mirror real conditions.

What is the difference between Mbps and MB/s?

Mbps stands for megabits per second (usually advertised by Internet Service Providers), while MB/s stands for megabytes per second (used for file sizes). 1 MB/s equals 8 Mbps.

Can I estimate how much data streaming video consumes?

Yes. Use the data volume section to calculate total gigabytes consumed when streaming or downloading at a given speed over hours.

Free Bandwidth & Download Time Calculator

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Accurately estimate file transfer times across 4G, 5G, cable, and gigabit fiber connections with packet overhead adjustments and data volume estimators.

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