How to convert gigabytes to megabytes
Apply the documented gigabytes-to-megabytes relationship below, keeping the full stored constant until the displayed result is rounded.
Gigabytes × 1000 = Megabytes
For example, 10 GB equals 10,000 MB.
Gigabytes to Megabytes reference table
| Gigabytes | Megabytes |
|---|---|
| 1 GB | 1,000 MB |
| 5 GB | 5,000 MB |
| 10 GB | 10,000 MB |
| 25 GB | 25,000 MB |
| 50 GB | 50,000 MB |
| 100 GB | 100,000 MB |
Method and quality checks
- Calculation
- Gigabytes × 1000 = Megabytes. The calculator keeps the stored factor through the operation and rounds only the displayed result to the selected or page-supported precision.
- Unit convention
- Decimal SI storage units are used: 1 GB equals 1,000 MB. Binary units such as GiB and MiB are separate units.
- Input validation
- Finite numeric inputs are accepted. Results outside the supported numeric range are rejected instead of being displayed as valid measurements.
- Reasonableness check
- 10 GB produces 10,000 MB. Check the direction and approximate scale before relying on a more precise displayed value.
Deeper method: Understanding digital storage.
Decimal GB and MB versus binary GiB and MiB
This converter follows decimal SI prefixes used by storage manufacturers: 1 GB = 1,000 MB. Binary quantities use the distinct symbols GiB and MiB and scale by 1,024 instead.
- Keep the B uppercase for bytes; lowercase b means bits.
- Check whether an operating system reports GB or GiB.
- Advertised capacity and available formatted capacity are not identical concepts.
Reference: IEC binary prefixes.