Use decimal for storage labels
Hard drives, SSDs, cloud storage plans, and phone storage pages usually use 1 GB = 1,000 MB.
💾 Data size converter
MB to GB Converter
Convert megabytes to gigabytes with decimal and binary options, formulas, quick reference tables, and file-size examples.
Direct answer: 1,000 MB = 1 GB using the common decimal storage standard. In binary units, 1,024 MiB = 1 GiB.
MB to GB Converter calculator
Formula: decimal GB = MB ÷ 1,000; binary GiB = MiB ÷ 1,024.
Decimal vs binary: Storage products usually use decimal GB/MB. Operating systems and technical memory contexts may use binary GiB/MiB. Choose the mode that matches your source.
Quick reference table
| Input | Decimal | Binary |
|---|---|---|
| 100 MB | 0.10 GB | 0.0977 GiB |
| 500 MB | 0.50 GB | 0.4883 GiB |
| 1,000 MB | 1.00 GB | 0.9766 GiB |
| 1,024 MB | 1.024 GB | 1.00 GiB |
| 5,000 MB | 5.00 GB | 4.8828 GiB |
| 10,000 MB | 10.00 GB | 9.7656 GiB |
Use binary for operating-system style math
Memory and some OS file-size views use base-2 units: 1 GiB = 1,024 MiB.
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FAQ
How many MB are in 1 GB?
In decimal storage, 1 GB equals 1,000 MB. In binary computing contexts, 1 GiB equals 1,024 MiB.
Why does my device show less storage than advertised?
Manufacturers often use decimal GB, while operating systems may display binary GiB or reserve space for system files.
Does this MB to GB converter store my file size?
No. The calculator runs locally in your browser.
Source snapshot: Traffic radar 2026-05-12-0029: P0 unit-conversion expansion after pre-gate passed at 1,026 quality URLs. Built as original data-size/speed calculators; no external repository content copied. Formulas reviewed 2026-05-12; decimal and binary assumptions are labeled on-page.