MB to GB Converter
Convert megabytes (MB) to gigabytes (GB) for storage, downloads, backups, and file size checks. Choose decimal GB or binary-equivalent GiB depending on the context.
MB to GB Converter tool
Enter a size in MB, then choose whether you want decimal GB, binary-equivalent GiB, or both.
| Unit | Value |
|---|
How MB to GB conversion works
MB to GB conversion depends on whether you are using decimal storage units or binary-style display units. Storage labels, download sizes, and network-related file sizes usually use decimal units, while some operating systems display storage using binary units.
- Decimal: GB = MB ÷ 1000
- Binary-equivalent: GiB is based on powers of 1024
- Practical rule: use decimal GB for product labels and download sizes; use binary-equivalent values when comparing with OS storage displays
This page treats the input as decimal MB. For binary comparison, it converts MB to bytes first, then displays the binary-equivalent GiB value.
Examples
- 500 MB → 0.5 GB decimal
- 1500 MB → 1.5 GB decimal, about 1.397 GiB binary-equivalent
- 2048 MB → 2.048 GB decimal, about 1.907 GiB binary-equivalent
- 10000 MB → 10 GB decimal
FAQ
- Is 1 GB equal to 1000 MB or 1024 MB?
Both are used in different contexts. Decimal storage units use 1 GB = 1000 MB. Binary units use 1 GiB = 1024 MiB. This converter can show decimal GB and binary-equivalent GiB.
- Which setting should I use for file sizes?
Use decimal GB when matching storage labels, download sizes, or manufacturer capacity. Use the binary-equivalent GiB view when comparing with operating system storage displays.
- Why does my computer show less space than the drive label?
One common reason is unit display. A drive sold using decimal GB may be shown by an operating system using binary-style units, which makes the displayed number look smaller.
- Can I enter decimal MB values?
Yes. You can enter values like 12.5 MB, 1500.75 MB, or other decimal file sizes.
- Does this converter upload my data?
No. The calculation runs locally in your browser and your input is not sent to a server.