Gigabyte to Megabyte
Free instant gigabyte to megabyte converter. 1 GB = 1000 MB.
Common Gigabyte to Megabyte values
| Gigabyte (GB) | Megabyte (MB) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 500 | 500000 |
| 1000 | 1000000 |
How does Gigabyte to Megabyte conversion work?
Type a value in the Gigabyte (GB) field and the equivalent in Megabyte (MB) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
Gigabyte. 1 billion bytes. Roughly the size of a 2-hour HD movie at moderate quality.
Megabyte. 1 million bytes. About one minute of MP3 audio at standard quality.
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No submit button — the result updates as you type. Math runs entirely in your browser, so it’s as fast as your device.
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Works in any modern browser — Mac, Windows, Linux, iPhone, Android, tablets. No installation, no signup.
🎯 Accurate conversions
Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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