Gigabit to Megabit Converter
One Gigabit equals 1024 Megabit (1 Gbit = 1024 Mbit). Multiply a Gigabit value by 1024 to get the equivalent in Megabit. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
Mbit = Gbit × 1024
Multiply the Gigabit value by 1024 to get the equivalent value in Megabit.
Example Conversions
1 Gigabit (Gbit)
1024 Megabit (Mbit)
5 Gigabit (Gbit)
5120 Megabit (Mbit)
10 Gigabit (Gbit)
10240 Megabit (Mbit)
25 Gigabit (Gbit)
25600 Megabit (Mbit)
100 Gigabit (Gbit)
102400 Megabit (Mbit)
Conversion Table
| Gigabit (Gbit) | Megabit (Mbit) |
|---|---|
| 0.1 | 102.4 |
| 0.5 | 512 |
| 1 | 1024 |
| 2 | 2048 |
| 5 | 5120 |
| 10 | 10240 |
| 25 | 25600 |
| 50 | 51200 |
| 100 | 102400 |
| 250 | 256000 |
| 500 | 512000 |
| 1000 | 1024000 |
How to Convert Manually
Use these steps to convert Gigabit values to Megabit without the calculator.
- Write down the value in Gigabit (Gbit) that you want to convert.
- Multiply that value by 1024.
- For example, 10 Gigabit × 1024 = 10240 Megabit.
- Label the result as Megabit (Mbit).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Gigabit and one Megabit.
About Gigabit and Megabit
The gigabit here is 1,024 megabits, or 128 megabytes. Fiber connections and modern LAN hardware ('gigabit ethernet') are rated in gigabits per second. The megabit here is 1,024 kilobits, or 128 kilobytes. Home internet speeds are advertised in megabits per second — divide by 8 for megabytes per second. One Gigabit equals 1024 Megabit (1 Gbit = 1024 Mbit). Gigabit to Megabit conversion comes up most often in fiber internet plans and in ethernet and LAN hardware speeds, typically when figures need restating for home internet speed plans.
Precision and Rounding: This converter uses the binary convention (1 KB = 1,024 bytes), which matches how operating systems report file and memory sizes. Storage manufacturers label drives with decimal units (1 GB = 1,000,000,000 bytes), which is why a '1 TB' drive shows roughly 931 GB in your OS — check which convention your source uses.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Gigabit equals 15360 Megabit.
15 Gbit × 1024 = 15360 Mbit
FAQ
How do I convert Gigabit to Megabit?
Multiply the Gigabit value by 1024 to get the equivalent value in Megabit.
What is the formula for Gigabit to Megabit?
The formula is Mbit = Gbit × 1024.
How many Megabit are in 1 Gigabit?
1 Gigabit equals 1024 Megabit.
Can I convert Megabit back to Gigabit?
Yes. 1 Megabit equals 0.0009765625 Gigabit, and the related converter can reverse the calculation.
What are common names for Gigabit and Megabit?
Gigabit is shown as Gbit and may also be searched as gigabits, gbit. Megabit is shown as Mbit and may also be searched as megabits, mbit.
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