📏 Gigabytes to Megabytes Converter
Convert gigabytes (GB) to megabytes (MB) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 gigabyte (GB) = 1,000 megabytes (MB). Formula: MB = GB × 1,000.
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Gigabytes to Megabytes Converter inputs
Result
Gigabytes to Megabytes conversion table
| Gigabytes (GB) | Megabytes (MB) |
|---|---|
| 0.1 GB | 100 MB |
| 0.5 GB | 500 MB |
| 1 GB | 1,000 MB |
| 2 GB | 2,000 MB |
| 3 GB | 3,000 MB |
| 5 GB | 5,000 MB |
| 10 GB | 10,000 MB |
| 20 GB | 20,000 MB |
| 25 GB | 25,000 MB |
| 50 GB | 50,000 MB |
| 100 GB | 100,000 MB |
| 1,000 GB | 1,000,000 MB |
Other data conversions
How to convert gigabytes to megabytes
Multiply the number of gigabytes by 1,000 to get megabytes: MB = GB × 1,000.
Example: 5 GB = 5,000 MB.
The gigabyte (GB) and the megabyte (MB) are both units of data. Need the opposite direction? Use the MB to GB converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many megabytes are in a gigabyte?
1 gigabyte = 1,000 megabytes.
How do I convert gigabytes to megabytes?
Use the formula MB = GB × 1,000. For example, 5 GB = 5,000 MB.
How do I convert megabytes back to gigabytes?
1 megabyte = 0.001 gigabytes. Use the MB to GB converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.