Convert Gigabits to Megabytes (Gbit to MB)
1 gigabit (Gbit) = 125 megabytes (MB). 1 MB = 0.008 Gbit. Example: 15 Gbit = 15 × 125 = 1875 MB.
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1 Gbit = 125 MB
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigabit to megabyte converter to paste a column from Excel.
How to Convert Gigabit to Megabyte
- 1 Gbit = 125 MB
- 1 MB = 0.008 Gbit
- Example: convert 15 Gbit to MB: 15 Gbit = 15 × 125 MB = 1875 MB
Formula
MB = Gbit × 125
Derivation from SI units:
- 1 Gbit = 10⁹ bits.
- 1 MB = 10⁶ bytes = 8 × 10⁶ bits (decimal, SI).
- 1 Gbit = 1000000000 bit ÷ 8000000 bit per MB = 125 MB
Both units are defined exactly, so the factor is exact. Gigabit definition: gigabit; Megabyte definition: megabyte.
Worked examples
- A reading of 16 Gbit converts to 2000 MB.
16 Gbit × 125 = 2000 MB - A value of 128 Gbit is 16000 MB.
128 Gbit × 125 = 16000 MB
Gigabit to Megabyte conversion table
| Gigabits (Gbit) | Megabytes (MB) |
|---|---|
| 1 Gbit | 125 MB |
| 2 Gbit | 250 MB |
| 4 Gbit | 500 MB |
| 8 Gbit | 1000 MB |
| 16 Gbit | 2000 MB |
| 32 Gbit | 4000 MB |
| 64 Gbit | 8000 MB |
| 100 Gbit | 12500 MB |
| 128 Gbit | 16000 MB |
| 256 Gbit | 32000 MB |
| 500 Gbit | 62500 MB |
| 1000 Gbit | 125000 MB |
Where it's used
Gigabits are used for DRAM and NAND flash chip densities, while megabytes appear in photos, documents and songs. Both measure amount of digital information, so the conversion is a fixed factor.
Gigabit to other data storage units
| Conversion | 1 Gbit equals |
|---|---|
| gigabit to megabyte | 125 MB |
| gigabit to byte | 125000000 B |
| gigabit to kilobyte | 125000 kB |
| gigabit to gigabyte | 0.125 GB |
| gigabit to terabyte | 0.000125 TB |
| gigabit to bit | 1000000000 bit |
| gigabit to megabit | 1000 Mbit |
| gigabit to kibibyte | 122070.3125 KiB |
Show 5 more units
| gigabit to mebibyte | 119.2092896 MiB |
|---|---|
| gigabit to gibibyte | 0.1164153218 GiB |
| gigabit to kilobit | 1000000 kbit |
| gigabit to petabyte | 1.25 × 10⁻⁷ PB |
| gigabit to tebibyte | 0.0001136868377 TiB |
Frequently asked questions
How many megabytes are in 1 gigabit?
1 Gbit = 125 MB.
How do I convert gigabits to megabytes?
Multiply the value in Gbit by 125. For example, 15 Gbit × 125 = 1875 MB.
Is the Gbit to MB conversion exact?
Yes. Both units are defined exactly, and 1 Gbit is exactly 125 MB.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Gigabits to Megabytes (Gbit to MB). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/gigabits-to-megabytes/
IEEE
Scientific Converters, "Convert Gigabits to Megabytes (Gbit to MB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/gigabits-to-megabytes/