What is the MB to GB Converter?
Mobile data bundles, file downloads and storage all use megabytes (MB) and gigabytes (GB). Storage makers and telecom companies use decimal units (1 GB = 1,000 MB), while Windows and many apps use binary units (1 GiB = 1,024 MiB). That is why a 1 TB hard drive shows about 931 GB on your computer.
The converter shows both answers. To shrink large photos before sending, try the Image Compressor.
How to use the MB to GB Converter
- Type the value in MB into the box.
- Read the answer in GB instantly; extra units are shown below it.
- Click GB → MB to convert the other way.
- Use the conversion table for common values.
Formula
GB = MB ÷ 1000 · GiB = MiB ÷ 1024
Example
A 2,500 MB data bundle is 2.5 GB. A 700 MB video is 0.7 GB, or 0.68 GiB as Windows reports it.
MB to GB conversion chart
| Megabytes | Gigabytes (1000) | Gibibytes (1024) |
|---|---|---|
| 100 MB | 0.1 GB | 0.098 GiB |
| 500 MB | 0.5 GB | 0.488 GiB |
| 1,000 MB | 1 GB | 0.977 GiB |
| 1,024 MB | 1.024 GB | 1 GiB |
| 5,000 MB | 5 GB | 4.883 GiB |
| 10,000 MB | 10 GB | 9.766 GiB |
When do you need to convert MB to GB?
- Choosing the right mobile data bundle for your usage.
- Checking whether a file will fit an email or WhatsApp limit.
- Understanding phone, USB and hard drive storage sizes.
- Estimating cloud backup and download sizes.
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Frequently asked questions
How many MB are in 1 GB?
1,000 MB in decimal units, or 1,024 MiB in binary units.
Why does my 1 TB drive show 931 GB?
The drive maker counts 1 TB as 1,000,000,000,000 bytes; Windows divides by 1,024 three times and reports about 931 GiB, labelled "GB".
How many GB is 1,024 MB?
1.024 GB in decimal units, or exactly 1 GiB in binary units.
Which unit do mobile networks use?
Most data bundles are sold in decimal units, so 1 GB = 1,000 MB.
What is bigger, MB or GB?
A gigabyte is about a thousand times bigger than a megabyte.
Is the MB to GB Converter free to use?
Yes. The MB to GB Converter on Custom Converter is completely free, with no sign-up, no daily limit and no watermark.
Does the MB to GB Converter work on mobile phones?
Yes. It is built mobile-first and works on Android phones, iPhones, tablets and computers in any modern browser, with no app to install.