Gigabits (Gb) to Megabits (Mb) Converter
Enter your Gigabits (Gb) value to convert to Megabits (Mb). 1 Gb = 1,000 Mb, calculated across both decimal (SI) and binary (IEC) standards.
Convert Gigabits to Megabits
Do you want to convert megabits to gigabits?
How to Convert Gigabits to Megabits
To convert gigabits to megabits, multiply by 1,000. This gives you the equivalent storage size in the target unit. Related: Mb to Gigabits converter.
Gb: A gigabit is 1,000 megabits or 1,000,000,000 bits. Used for high-speed network connections. You might also need: Gigabits to Pb calculator.
Mb: A megabit is 1,000 kilobits or 1,000,000 bits. Standard unit for internet connection speeds. Try the convert GiB to Megabits.
1 Gb = 1,000 Mb (using SI decimal standard) — which means there are 1,000megabits in every gigabit.
Gb to Mb Conversion Formula
// Convert Gb to Mb
Mb = Gb × 1,000
// Reverse: Convert Mb to Gb
Gb = Mb × 0.001
Gb to Mb Conversion Examples
100 Gb = 100,000 Mb
256 Gb = 256,000 Mb
500 Gb = 500,000 Mb
1,000 Gb = 1,000,000 Mb
2,048 Gb = 2,048,000 Mb
What Is a Gigabit?
A gigabit is 1,000 megabits or 1,000,000,000 bits. Used for high-speed network connections. Related: Bits to GiB.
The gigabit is a SI decimal bit unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. Related: how many Gibps in Tebibytes Per Second.
Common uses: Fiber internet speeds, enterprise networking, 10GbE connections Related: how many Yottabytes in a Gb.
1 Gb = 1 × 10⁹ bits = 125 × 10⁶ bytes.
The gigabit can be abbreviated as Gb; for example, 1 gigabit can be written as 1 Gb.
What Is a Megabit?
A megabit is 1,000 kilobits or 1,000,000 bits. Standard unit for internet connection speeds. You might also need: calculate ZB to Mb.
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. Check out our PiB to Gib conversion rate.
Common uses: Internet speeds (Mbps), video streaming bitrates, network bandwidth Related: converting Zettabits Per Second to Exabytes Per Second.
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.
Gigabit to Megabit Conversion Table
The table below shows various gigabit measurements converted to megabits.
| Gigabits | Megabits |
|---|---|
| 1 Gb | 1,000 Mb |
| 2 Gb | 2,000 Mb |
| 5 Gb | 5,000 Mb |
| 10 Gb | 10,000 Mb |
| 25 Gb | 25,000 Mb |
| 50 Gb | 50,000 Mb |
| 100 Gb | 100,000 Mb |
| 250 Gb | 250,000 Mb |
| 500 Gb | 500,000 Mb |
| 1,000 Gb | 1,000,000 Mb |
💡 Storage Engineer Tip
For accurate capacity planning, always verify whether specifications use SI decimal (base 1000) or binary (base 1024) units. The difference becomes significant at larger scales.
— Subash Geetha Krishnan, 15+ years in enterprise storage
When to Convert Gb to Mb
Common scenario: Planning storage allocation, comparing specifications, or converting between gigabit and megabit for capacity planning. Learn more: Gigabits in Petabytes.
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. Check out our Zib to Mb.