Gigabytes to Megabytes Converter
Convert Gigabytes to Megabytes with the exact conversion factor, a worked example and a quick-reference table. Runs entirely in your browser.
This converter turns Gigabytes into Megabytes instantly using the standard definition of both units. It includes the formula, a worked example, and a quick table for common amounts, and it works for any value you type — including decimals and negatives where they make sense.
Quick reference — Gigabytes to Megabytes
How to use this calculator
- Enter the value in Gigabytes in the input box.
- Read the result in Megabytes — it updates as you type.
- Use the Swap button to convert in the opposite direction.
- Check the quick-reference table for common Gigabytes amounts.
The formula
Megabytes = Gigabytes × 1,000
Worked example
5 GB = 5,000 MB — in full, 5 Gigabytes converts to 5,000 Megabytes. File sizes, downloads and storage specs are the everyday jobs for this conversion.
Frequently Asked Questions
How do I convert Gigabytes to Megabytes?
Multiply the value in Gigabytes by 1,000. For example, 5 Gigabytes × 1,000 = 5,000 Megabytes. To go the other way, divide by 1,000 instead — or press Swap in the converter above.
How many Megabytes are in one Gigabyte?
One Gigabyte equals 1,000 Megabytes. Scaling up, 10 Gigabytes = 10,000 Megabytes and 100 Gigabytes = 100,000 Megabytes. The converter uses the full-precision factor, so typed values are more precise than the rounded figure quoted here.
Which is bigger, a Gigabyte or a Megabyte?
A Gigabyte is bigger. One Gigabyte equals 1,000 Megabytes, while one Megabyte is only 0.001 Gigabytes. So a measurement that looks larger in Megabytes is reflecting the scale difference, not an error.
What is 5 Gigabytes in Megabytes?
5 Gigabytes is 5,000 Megabytes. The math is 5 × 1,000 = 5,000. Try any other amount in the converter above and the result updates as you type.