How to Convert Mebibytes to Gigabytes (MiB to GB)

Updated 5 Oct 2026 in Unit Converters

Data conversions explain why a 1 TB drive shows less space on your computer and help compare mobile plans sold in gigabytes. This guide shows how to convert mebibytes into gigabytes by hand, with examples and a quick-reference table.

The conversion

To convert mebibytes to gigabytes, multiply the value by 0.001048576. To go the other way, divide by the same number (or multiply by 953.6743164062). For a quick estimate, multiply by about 0.001.

Gigabytes = mebibytes × 0.001048576

Worked examples

Mebibytes to Gigabytes table

MebibytesGigabytes
1 MiB0.001049 GB
2 MiB0.002097 GB
5 MiB0.005243 GB
10 MiB0.010486 GB
20 MiB0.020972 GB
25 MiB0.026214 GB
50 MiB0.052429 GB
100 MiB0.104858 GB
250 MiB0.262144 GB
500 MiB0.524288 GB
1,000 MiB1.0486 GB

Common questions

Is MiB to GB exact?

The factors used here are the internationally defined values where they exist; results are rounded for display only.

How do I convert back?

Use the Gigabytes to Mebibytes converter.

Mistakes to avoid

Mixing similar-sounding units

US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.

Dropping the units

A bare number without a unit is easy to misread later. Always write the unit with the result.

Multiplying when you should divide

Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.

Background

Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.

Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.

Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.

For any value, use the Mebibytes to Gigabytes Converter or browse all data storage converters.

Run your own numbers: Mebibytes to Gigabytes Converter

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