MB to GB Converter — Free & Instant

What This Tool Does

This tool converts a file size or storage amount in megabytes to gigabytes using the standard binary factor (1 GB = 1024 MB), the convention operating systems and storage manufacturers use for file sizes and drive capacity. It's built for checking phone storage, comparing cloud plans, or making sense of a download size, backup size or mobile data cap quoted in MB.

How to Use It

Type your size in megabytes into the value field (the tool is pre-set to convert MB → GB).
Press Convert.
Your result in gigabytes appears instantly. Need a different unit pair? The Category, From and To dropdowns above the result still work if you want to switch.

Example

A phone shows 3,500 MB of photos taking up space — that converts to about 3.42 GB, useful for checking against a cloud backup plan sold in GB, or deciding whether it'll fit in the free tier of a photo backup service.

Frequently Asked Questions

How many MB is 1 GB, exactly?

1 gigabyte equals 1,024 megabytes under the binary convention used by operating systems and storage manufacturers for file sizes and drive capacity — this tool uses that standard 1,024 factor rather than a rounded 1,000.

Why do phone storage and downloaded file sizes sometimes not add up?

Operating systems typically report storage using the 1,024-based (binary) convention, while some manufacturers and network providers advertise capacity or data plans using a 1,000-based (decimal) convention — the mismatch is why a '128 GB' phone shows less usable space than expected.

Is this useful for checking mobile data usage?

Yes — many Indian mobile plans quote daily data limits in MB or GB, so converting between the two helps you track usage against your plan, especially for prepaid daily-limit plans.