Megabits (Mb) to Gigabytes (GB) Converter
Enter your Megabits (Mb) value to convert to Gigabytes (GB). 1 Mb = 0.000125 GB, calculated across both decimal (SI) and binary (IEC) standards.
Convert Megabits to Gigabytes
Do you want to convert gigabytes to megabits?
How to Convert Megabits to Gigabytes
To convert megabits to gigabytes, divide by 8 then adjust for scale. Since 1 byte = 8 bits, this conversion translates bit-based measurements to the byte-based units used for storage capacity. Learn more: Gigabytes to Megabits.
Mb measures data in bits—commonly used for memory addressing and low-level data specifications. See also: Megabits to Bytes converter.
GB measures data in bytes—the standard unit for file sizes, storage capacity, and what you see in file explorers. Use our Tebibits to Gigabytes calculator.
1 Mb = 0.000125 GB (using SI decimal standard) — or equivalently, 1 GB = 8,000Mb.
Mb to GB Conversion Formula
// Convert Mb to GB
GB = Mb × 0.000125
// Reverse: Convert GB to Mb
Mb = GB × 8,000
Mb to GB Conversion Examples
100 Mb = 0.0125 GB
256 Mb = 0.032 GB
500 Mb = 0.0625 GB
1,000 Mb = 0.125 GB
2,048 Mb = 0.256 GB
What Is a Megabit?
A megabit is 1,000 kilobits or 1,000,000 bits. Standard unit for internet connection speeds. Try the convert Terabytes to Nibbles.
The megabit is a SI decimal bit unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. See also: Yottabytes Per Second to Pebibytes Per Second conversion.
Common uses: Internet speeds (Mbps), video streaming bitrates, network bandwidth See also: Mb to Megabytes converter.
1 Mb = 1 × 10⁶ bits = 125,000 bytes.
The megabit can be abbreviated as Mb; for example, 1 megabit can be written as 1 Mb.
What Is a Gigabyte?
A gigabyte is 1,000 megabytes or 1,000,000,000 bytes using the SI decimal standard. This is what hard drive manufacturers typically use. Try the Megabytes to GB calculator.
The gigabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. You might also need: convert TB to Terabits.
Common uses: Movies, video games, smartphone storage, USB drives, cloud storage plans Learn more: Tebibits Per Second to Kbps.
1 GB = 8 × 10⁹ bits = 1 × 10⁹ bytes.
The gigabyte can be abbreviated as GB; for example, 1 gigabyte can be written as 1 GB.
Megabit to Gigabyte Conversion Table
The table below shows various megabit measurements converted to gigabytes.
| Megabits | Gigabytes |
|---|---|
| 1 Mb | 0.000125 GB |
| 2 Mb | 0.00025 GB |
| 5 Mb | 0.000625 GB |
| 10 Mb | 0.00125 GB |
| 25 Mb | 0.003125 GB |
| 50 Mb | 0.00625 GB |
| 100 Mb | 0.0125 GB |
| 250 Mb | 0.03125 GB |
| 500 Mb | 0.0625 GB |
| 1,000 Mb | 0.125 GB |
| 5,000 Mb | 0.625 GB |
| 10,000 Mb | 1.25 GB |
💡 Storage Engineer Tip
Remember: 8 bits = 1 byte. When your ISP advertises "100 Mbps," divide by 8 to get your actual download speed in MB/s (approximately 12.5 MB/s theoretical maximum).
— Subash Geetha Krishnan, 15+ years in enterprise storage
When to Convert Mb to GB
Common scenario: Converting your internet speed (Mbps) to actual download rate in MB/s, or calculating real-world transfer capabilities. See also: how many PB in Megabits.
Other situations include storage planning for calculating how much data fits in a given capacity, file management for understanding sizes across different scales, cost estimation for budgeting cloud storage, and backup planning for determining media requirements. You might also need: converting Zettabytes to Gigabytes.