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.
Governance
Record cb6fd4b06d3d • Reviewed by Fidamen Standards Committee
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
F.A.Q.
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
- IEC 80000-13:2008 — Information science and technology — https://www.iso.org/standard/31898.html
- NIST SP 811 — Guide for the Use of the International System of Units — https://www.nist.gov/pml/special-publication-811
Further resources
Versioning & Change Control
Audit record (versions, QA runs, reviewer sign-off, and evidence).
Record ID: cb6fd4b06d3dWhat changed (latest)
v1.0.0 • 2025-11-30 • MINOR
Initial publication and governance baseline.
Why: Published with reviewed formulas, unit definitions, and UX controls.
Public QA status
PASS — golden 25 + edge 120
Last run: 2026-01-23 • Run: golden-edge-2026-01-23
Versioning & Change Control
Audit record (versions, QA runs, reviewer sign-off, and evidence).
What changed (latest)
v1.0.0 • 2025-11-30 • MINOR
Initial publication and governance baseline.
Why: Published with reviewed formulas, unit definitions, and UX controls.
Public QA status
PASS — golden 25 + edge 120
Last run: 2026-01-23 • Run: golden-edge-2026-01-23
Engine
v1.0.0
Data
Baseline (no external datasets)
Content
v1.0.0
UI
v1.0.0
Governance
Last updated: Nov 30, 2025
Reviewed by: Fidamen Standards Committee (Review board)
Credentials: Internal QA
Risk level: low
Reviewer profile (entity)
Fidamen Standards Committee
Review board
Internal QA
Entity ID: https://fidamen.com/reviewers/fidamen-standards-committee#person
Semantic versioning
- MAJOR: Calculation outputs can change for the same inputs (formula, rounding policy, assumptions).
- MINOR: New features or fields that do not change existing outputs for the same inputs.
- PATCH: Bug fixes, copy edits, or accessibility changes that do not change intended outputs except for previously incorrect cases.
Review protocol
- Verify formulas and unit definitions against primary standards or datasets.
- Run golden-case regression suite and edge-case suite.
- Record reviewer sign-off with credentials and scope.
- Document assumptions, limitations, and jurisdiction applicability.
Assumptions & limitations
- Uses exact unit definitions from the Fidamen conversion library.
- Internal calculations use double precision; display rounding follows the unit's configured decimal places.
- Not a substitute for calibrated instruments in regulated contexts.
- Jurisdiction-specific rules may require official guidance.
Change log
v1.0.0 • 2025-11-30 • MINOR
Initial publication and governance baseline.
Why: Published with reviewed formulas, unit definitions, and UX controls.
Areas: engine, content, ui • Reviewer: Fidamen Standards Committee • Entry ID: 4eeea3affc45
