Convert Megabytes to Gigabytes – Data Converter
This converter turns any megabyte (MB) value into gigabytes (GB) using the metric base-10 relationship that device makers and cloud dashboards commonly follow.
Because 1 gigabyte equals 1,000 megabytes in the SI decimal system, the calculation is a simple division by 1,000. Use this to reconcile storage specs, transfer estimates, and billing breakpoints.
Interactive Converter
Convert between megabyte and gigabyte with precision rounding.
Quick reference table
| Megabyte | Gigabyte |
|---|---|
| 1 MB | 0.01 GB |
| 5 MB | 0.04 GB |
| 10 MB | 0.08 GB |
| 25 MB | 0.2 GB |
| 50 MB | 0.4 GB |
| 100 MB | 0.8 GB |
Methodology
Apply the decimal SI definition: 1 GB = 1,000 MB. The converter divides the MB input by 1,000 to return GB.
If a context expects binary units (GiB), adjust with 1 GiB = 1,024 MiB = 1,048,576 KiB = 1,073,741,824 bytes; decimal remains the default shown here.
Worked examples
500 MB → 0.5 GB
1,000 MB → 1 GB
2,500 MB → 2.5 GB
Expert Q&A
Why do some tools use 1,024 instead of 1,000?
Operating systems that show GiB (gibibytes) use powers of two, so 1 GiB = 1,024 MiB. Hardware marketing, ISP plans, and most cloud dashboards use decimal SI (1 GB = 1,000 MB).
How do I handle MB listed as MiB?
If the source uses MiB, first convert MiB → bytes (MiB × 1,048,576) and then bytes → GB (bytes ÷ 1,000,000,000).
Does this account for filesystem or protocol overhead?
No. This is a pure unit conversion. Real storage availability and transfer throughput can be slightly lower once overhead is considered.
Sources & citations
- NIST SI prefixes reference — https://www.nist.gov/pml/weights-and-measures/si-units
- IEC binary prefixes specification — https://webstore.iec.ch/publication/2702