Megabytes to Gigabytes Converter
Convert megabytes to gigabytes — and back — in an instant. Type a value in either box and the answer updates live. It’s accurate, free and completely private: the conversion runs entirely on your device.
- 🔒 100% private — no uploads
- 🆓 Free, no watermark
- 📱 Works on any device
How to convert
- 1
Choose your units
The tool opens on the most common pairing. Change either unit from its dropdown, or hit the swap button to flip the direction.
- 2
Type a value
Enter a number in either box. The other side updates instantly as you type — convert either way without pressing a button.
- 3
Copy or compare
Copy the result to your clipboard, or scan the common-values table below for quick at-a-glance conversions.
Why use Megabytes to Gigabytes Converter?
100% private
Every conversion is computed locally in your browser. Nothing you enter ever leaves your device.
Instant & two-way
Results update live as you type, in either direction — no “convert” button and no page reloads.
Accurate
Conversions use exact, standards-based factors, so you get the same answer a trusted reference would.
Works on any device
No install and no account — it runs in any modern browser on desktop, tablet or phone.
Megabytes to gigabytes: decimal vs binary
Storage makers and this tool use the decimal definition, where 1 GB = 1000 MB, so 5000 MB = 5 GB. Operating systems often use binary units, where 1 GiB = 1024 MiB. That difference is why a drive sold as “500 GB” shows up as roughly 465 GiB in your file manager.
Why your drive looks smaller than the label
A 1 TB (1,000,000 MB) drive is only about 0.909 TiB in binary terms — nothing is missing, the two systems just count differently. Use the KB/MB/GB units for decimal and the KiB/MiB/GiB units for what your OS reports.
Frequently asked questions
How do I convert megabytes to gigabytes?
Type the number of megabytes in the first box and read the result in gigabytes — it updates as you type. To go the other way, type in the gigabytes box instead.
Does anything get uploaded to a server?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is uploaded, stored or logged, and it keeps working offline once the page has loaded.
Is it free?
Yes — completely free, no account, no watermark and no limits.