How to Convert Gibibytes to Mebibytes (GiB to MiB)

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 gibibytes into mebibytes by hand, with examples and a quick-reference table.

The conversion

To convert gibibytes to mebibytes, multiply the value by 1,024. To go the other way, divide by the same number (or multiply by 0.0009765625). For a quick estimate, multiply by about 1,000.

Mebibytes = gibibytes × 1,024

Worked examples

Gibibytes to Mebibytes table

GibibytesMebibytes
1 GiB1,024 MiB
2 GiB2,048 MiB
5 GiB5,120 MiB
10 GiB10,240 MiB
20 GiB20,480 MiB
25 GiB25,600 MiB
50 GiB51,200 MiB
100 GiB102,400 MiB
250 GiB256,000 MiB
500 GiB512,000 MiB
1,000 GiB1,024,000 MiB

Common questions

Is GiB to MiB 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 Mebibytes to Gibibytes converter.

Mistakes to avoid

Forgetting squared and cubed units

Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.

Mixing similar-sounding units

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

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

Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.

For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.

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.

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

Run your own numbers: Gibibytes to Mebibytes Converter

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