MB to GB Converter
Decimal (as sold) both ways — with the binary story told honestly.
Type in either field — the other updates instantly.
MB to GB chart
| Megabytes | Gigabytes |
|---|---|
| 5 MB | 0.01 GB |
| 25 MB | 0.03 GB |
| 100 MB | 0.1 GB |
| 250 MB | 0.25 GB |
| 500 MB | 0.5 GB |
| 700 MB | 0.7 GB |
| 1,000 MB | 1 GB |
| 1,500 MB | 1.5 GB |
| 2,000 MB | 2 GB |
| 4,700 MB | 4.7 GB |
| 8,000 MB | 8 GB |
| 25,000 MB | 25 GB |
| 50,000 MB | 50 GB |
| 100,000 MB | 100 GB |
5 MB ≈ song · 25 MB ≈ phone photo burst · 4,700 MB = DVD · 50,000 MB ≈ big game
How this is calculated
GB = MB ÷ 1000 (SI decimal — drives and data plans) · 1 GiB = 1024 MiB (binary — what Windows shows)
Storage is sold in decimal (1 GB = 1000 MB) but Windows reports binary (1 GiB = 1024 MiB) — which is why a "500 GB" drive shows as 465 "GB". Both are correct; they are different units wearing the same letters. This converter uses decimal because that is how data plans, drives, and download sizes are labelled.
The chart uses real objects — a song, a photo, an HD movie, a game download — so the numbers have anchors, not just zeros.
Megabytes to gigabytes is the conversion where two definitions have coexisted for decades. Storage manufacturers use decimal units — 1 GB is 1,000 MB — while operating systems have historically reported binary units, where 1 GiB is 1,024 MiB. The gap grows with size: a drive sold as 1 TB shows as about 931 GB in Windows, and neither figure is wrong.
That discrepancy has been litigated more than once, and the standards bodies' answer was the binary prefixes kibi, mebi and gibi, which almost nobody uses conversationally. Mobile data allowances, cloud storage and network speeds are quoted decimally; file sizes in older tools are often binary. Check which convention a figure uses before concluding you have been short-changed.
Frequently asked questions
How many MB in a GB?
1,000 MB in the decimal (SI) system that storage makers, data plans, and download counters use. The binary gibibyte (GiB) that Windows displays is 1,024 MiB — a different, similarly-named unit, which is the whole confusion.
Why does my 500 GB drive show only 465 GB?
The drive is 500 decimal GB (500,000,000,000 bytes). Windows divides by 1024³ and labels the result "GB" when it is really GiB: 500×10⁹ ÷ 1024³ = 465.7 GiB. Nothing is missing — the units differ.
Is 1 GB of data a lot?
It is roughly an hour of HD streaming, 200 songs, or a few hundred web pages with images. A 50 GB monthly plan comfortably covers everyday browsing and social apps; video is what eats gigabytes.
How do I convert GB to TB?
Divide by 1000 again: 2,000 GB = 2 TB. Each step in the decimal ladder (KB → MB → GB → TB) is ×1000; this converter handles the MB ↔ GB step both directions.