Megabytes to Gigabytes Converter
1,000 megabytes = 1 gigabyte
Convert Megabytes (MB) to Gigabytes (GB) instantly.
Conversion Formula
gigabytes = megabytes / 1,000
To convert megabytes to gigabytes, divide by 1,000. In the decimal (SI) system, 1 GB = 1,000 MB. Note: in binary (IEC), 1 GiB = 1,024 MiB. This converter uses SI units.
Megabytes to Gigabytes Table
| Megabytes (MB) | Gigabytes (GB) |
|---|---|
| 1 | 0.001 |
| 10 | 0.01 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
| 2000 | 2 |
| 5000 | 5 |
| 10000 | 10 |
About Megabytes to Gigabytes
The megabyte-to-gigabyte conversion is one of the most practical data conversions, used for understanding storage capacity, file sizes, and mobile data plans.
A typical smartphone photo is 3-8 MB, so 1 GB stores roughly 125-333 photos. A 3-minute MP3 song is about 3-5 MB, meaning 1 GB holds about 200-330 songs. A 2-hour HD movie is 3,000-5,000 MB (3-5 GB). A 4K movie can exceed 20,000 MB (20 GB).
Mobile data plans illustrate this well. Streaming standard-definition Netflix uses about 1,000 MB (1 GB) per hour. HD streaming consumes 3,000 MB (3 GB) per hour. A 15 GB monthly data plan supports about 15 hours of SD streaming or 5 hours of HD.
App sizes vary widely. Instagram is about 200 MB. A modern mobile game can be 500-2,000 MB (0.5-2 GB). WhatsApp uses about 100 MB for the app plus whatever media you accumulate.
Storage capacity context: a 256 GB phone holds 256,000 MB. A 1 TB hard drive is 1,000,000 MB (or 1,000 GB). When your phone says you've used "47.3 GB of 128 GB," that's 47,300 of 128,000 MB.
Note: storage manufacturers use SI units (1 GB = 1,000 MB) while operating systems sometimes use binary units (1 GiB = 1,024 MiB), which is why a "500 GB" drive shows as ~465 GiB.
Frequently Asked Questions
How many MB in a GB?
There are 1,000 megabytes (MB) in 1 gigabyte (GB) using SI (decimal) units. Using binary (IEC) units, 1 GiB = 1,024 MiB.
Why does my 1 TB drive show less than 1,000 GB?
Drive manufacturers use SI units (1 TB = 1,000 GB), but operating systems often display binary units (1 TiB = 1,024 GiB). A "1 TB" drive shows as about 931 GiB in your OS.
How many photos can 1 GB hold?
About 125-333 photos, depending on resolution. A 12 MP smartphone photo is typically 3-5 MB, and a 48 MP photo can be 8-12 MB.
Is 1 GB equal to 1024 MB or 1000 MB?
Both definitions exist. SI standard: 1 GB = 1,000 MB. IEC binary standard: 1 GiB = 1,024 MiB. Storage manufacturers and network speeds use SI (1,000), while some operating systems use binary (1,024).