One gigabit per second is 1,000 megabits per second. Fibre broadband and network switches are often marketed in Gbps.
How to use the Mbps to Gbps Converter
- Type the number of megabits per second into the Megabits per second field. Decimals such as 500 are fine.
- Read the answer in Gigabits per second – it updates as you type, with no button to press.
- To convert the other way, type into Gigabits per second and the megabits per second are recalculated.
- Press Copy results to copy both values with the page title, or Copy link to share this exact conversion.
This page converts only Mbit/s ⇄ Gbit/s. Need a different unit? Use the general data rate converter, where you can choose any “from” and “to” unit.
How it works
Both units measure data rate, so they are always in the same ratio: one megabit per second equals 0.001 gigabits per second. The calculator multiplies the number of megabits per second you type by 0.001 to give gigabits per second, and when you type into the gigabits per second field it divides by the same factor to give megabits per second. Because the ratio never changes, doubling the megabits per second always doubles the gigabits per second. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).
How to convert megabits per second to gigabits per second
- Write down the value in megabits per second, for example 1,000 Mbit/s.
- Multiply by the conversion factor 0.001 (because 1 megabit per second = 0.001 Gbit/s).
- 1,000 × 0.001 = 1 Gbit/s.
- To go back from gigabits per second to megabits per second, divide by 0.001 – or multiply by 1,000.
Mbit/s to Gbit/s conversion table
| Megabits per second | Gigabits per second | Gigabits per second | Megabits per second |
|---|---|---|---|
| 10 Mbit/s | 0.01 Gbit/s | 1 Gbit/s | 1,000 Mbit/s |
| 100 Mbit/s | 0.1 Gbit/s | 2 Gbit/s | 2,000 Mbit/s |
| 300 Mbit/s | 0.3 Gbit/s | 5 Gbit/s | 5,000 Mbit/s |
| 500 Mbit/s | 0.5 Gbit/s | 10 Gbit/s | 10,000 Mbit/s |
| 1,000 Mbit/s | 1 Gbit/s | 20 Gbit/s | 20,000 Mbit/s |
| 2,500 Mbit/s | 2.5 Gbit/s | 50 Gbit/s | 50,000 Mbit/s |
| 10,000 Mbit/s | 10 Gbit/s | 100 Gbit/s | 100,000 Mbit/s |
| 1,000 Gbit/s | 1,000,000 Mbit/s |
What is a megabit per second?
Megabits per second (Mbps) is the unit internet providers use to sell connection speed. Divide by 8 for megabytes per second.
What is a gigabit per second?
Gigabits per second (Gbps) is 1,000 Mbps, used for fibre broadband and network equipment.
Common mistakes to avoid
Reading mbps (megabits) as mb/s (megabytes); divide megabits by 8 to get megabytes.
Formula
1 Mbit/s = 0.001 Gbit/s1 Gbit/s = 1,000 Mbit/sGbit/s = Mbit/s × 0.001Worked example
Inputs — Megabits per second: 1,000 Mbit/s.
Results — Gigabits per second = 1 Gbit/s.
Frequently asked questions
How many Mbps is 1 Gbps?
1,000 Mbps.
Is 1 Gbps 1 GB per second?
No, it is about 125 MB/s.
How many gigabits per second are in one megabit per second?
1 Mbit/s = 0.001 Gbit/s.
How many megabits per second are in one gigabit per second?
1 Gbit/s = 1,000 Mbit/s.
How do I convert megabits per second to gigabits per second?
Multiply the number of megabits per second by 0.001. For example, 1,000 Mbit/s × 0.001 = 1 Gbit/s.
How do I convert gigabits per second back to megabits per second?
Divide by 0.001 (or multiply by 1,000), or simply type the value into the gigabits per second field above.
What is 10 Mbit/s in gigabits per second?
10 Mbit/s = 0.01 Gbit/s.
What is 100 Mbit/s in gigabits per second?
100 Mbit/s = 0.1 Gbit/s.
Is this conversion exact?
Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.
Can I convert to other units on this page?
This page converts only between megabits per second and gigabits per second. To pick any data rate unit, use the general data rate converter linked under Related calculators.
What formula does the Mbps to Gbps Converter use?
1 Mbit/s = 0.001 Gbit/s.