Converters

File size and download time

Convert MB, GB, TB and work out download time for your connection speed.

Embed this calculator on your website

Copy this code and paste it into your page (WordPress, Wix, Webflow, HTML…). It's free: please keep the link to HOD Calc.

<iframe src="https://calc.hod-group.com/embed/?hodtool=datasize&amp;hodlang=en" title="File size and download time" loading="lazy" style="width:100%;max-width:720px;height:560px;border:0;border-radius:12px" data-hodcalc></iframe>
<p style="font:13px sans-serif;margin:6px 0 0">Calculator by <a href="https://calc.hod-group.com/en/file-size-download-time/">HOD Calc</a></p>
<script async src="https://calc.hod-group.com/assets/embed.js"></script>

How it works

1 byte = 8 bits. Time = size in megabits / speed. Example: 1 GB at 100 Mbps ≈ 80 seconds (ideal conditions).

Results are for guidance only and do not replace professional advice.

Worked example

With the default values:

Size50
UnitGo (GB)
Connection speed (Mbps)100

you get:

Download time1 h 07 min
In MB50,000 MB
In GB50 GB
In GiB (binary)46.566 GiB

Frequently asked questions

How does the “File size and download time” tool work?

1 byte = 8 bits. Time = size in megabits / speed. Example: 1 GB at 100 Mbps ≈ 80 seconds (ideal conditions).

What do I need to enter?

Just fill in: size, unit, connection speed. The result updates as you type.

Can you give an example?

Size: 50; Unit: Go (GB); Connection speed (Mbps): 100 → Download time: 1 h 07 min; In MB: 50,000 MB.

Is this calculator free, and is my data private?

Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.