GB to MB Converter
The ×1,000 direction — data plans and drive sizes, honestly told.
Type in either field — the other updates instantly.
GB to MB chart
| Gigabytes | Megabytes |
|---|---|
| 0.5 GB | 500 MB |
| 1 GB | 1,000 MB |
| 2 GB | 2,000 MB |
| 4 GB | 4,000 MB |
| 5 GB | 5,000 MB |
| 8 GB | 8,000 MB |
| 10 GB | 10,000 MB |
| 16 GB | 16,000 MB |
| 32 GB | 32,000 MB |
| 50 GB | 50,000 MB |
| 64 GB | 64,000 MB |
| 100 GB | 100,000 MB |
| 128 GB | 128,000 MB |
| 256 GB | 256,000 MB |
| 512 GB | 512,000 MB |
| 1,000 GB | 1,000,000 MB |
| 2,000 GB | 2,000,000 MB |
How this is calculated
MB = GB × 1,000 (SI decimal, the storage-industry convention)
Splitting a data plan or drive into file-sized pieces: a 2 GB plan is 2,000 MB, a 512 GB drive is 512,000 MB. That is the decimal (SI) convention every drive label and mobile plan uses. Your operating system may count in binary units (1 GiB = 1,024 MiB) — same bytes, different bookkeeping.
Both conventions are real: storage vendors and networks use decimal (this page), while Windows historically reports binary units under decimal names — which is why a “500 GB” drive shows as ~465 “GB”. Nobody stole your gigabytes; two definitions are wearing one name.
Frequently asked questions
How many MB in 1 GB?
1,000 MB in the decimal convention used by drives, SSDs, and mobile plans. The binary neighbor is 1 GiB = 1,024 MiB — different unit, often sloppily labeled GB.
How many photos or songs fit in 1 GB?
Rough working numbers: ~250 smartphone photos (4 MB each), ~200 MP3s (5 MB), or about 30 minutes of 1080p video at streaming bitrates. Real sizes vary with quality settings.
Why does my 1 TB drive show ~931 GB?
The label counts decimal (1 TB = 1,000,000,000,000 bytes); the OS divides by 1024³ and calls the result GB. 10³ⁿ vs 2¹⁰ⁿ drift compounds: ~7% at the terabyte scale.
Is a 2,000 MB plan the same as 2 GB?
Yes — mobile carriers use decimal, so 2,000 MB and 2 GB are the same allowance, marketed with whichever number looks bigger.