Gbps to Mbps converter
To convert Gbps to Mbps, multiply by 1,000. A 1.2 Gbps fibre plan is 1,200 Mbps, and an 8 Gbps plan is 8,000 Mbps.
Tip: paste a reading like “12.4 MB/s” and the unit is picked for you.
1 Gbps equals:
- bps1,000,000,000
- kbps1,000,000
- Mbps1,000
- Gbps1
- B/s125,000,000
- kB/s125,000
- MB/s125
- GB/s0.125
- MiB/s119.20929
Runs entirely in your browser. Nothing you type is sent anywhere.
Formula
1 Gbps = 1,000,000,000 bits and 1 Mbps = 1,000,000 bits, so:
Common conversions
| Gbps | Mbps |
|---|---|
| 0.1 Gbps | 100 Mbps |
| 0.5 Gbps | 500 Mbps |
| 1 Gbps | 1,000 Mbps |
| 1.2 Gbps | 1,200 Mbps |
| 2 Gbps | 2,000 Mbps |
| 2.5 Gbps | 2,500 Mbps |
| 5 Gbps | 5,000 Mbps |
| 8 Gbps | 8,000 Mbps |
| 10 Gbps | 10,000 Mbps |
Examples: reading fibre and multi-gig offers
Providers switch to Gbps once plans pass a thousand megabits. Converting back to Mbps makes it easier to compare them with the plans you know and with activity figures that are all quoted in Mbps.
- 0.5 Gbps vs 500 Mbps. The same speed written two ways: 500 Mbps.
- 1.2 Gbps. 1,200 Mbps across the whole household. A single device on a Gigabit Ethernet port still sees about 940 Mbps; the rest is available to other devices at the same time.
- 8 Gbps. 8,000 Mbps, or 1 GB/s. That is 400 simultaneous 4K streams at YouTube's recommended 20 Mbps each, far beyond what a home uses at once. Its practical value is shorter waits for very large downloads when the server can keep up.
For a sense of scale, the FCC's 2024 broadband benchmark is 100 Mbps down and 20 Mbps up, which is 0.1 Gbps down.
Pitfall: the link rate is shared
A Gbps figure describes the connection to your home, not what each device gets. Wi-Fi, device network ports and the server all cap single transfers. Before paying for a higher tier, check what your household actually does at once with the internet speed calculator, and read is gigabit worth it?. To express these speeds as copy rates in bytes, use Mbps to GB/s or the file transfer time calculator; to rescale the other way, see Mbps to Gbps.
Frequently asked questions
How many Mbps is 1 Gbps?
1 Gbps is 1,000 Mbps. Network prefixes are decimal, so multiply Gbps by 1,000.
How many Mbps is 2.5 Gbps and what does it need?
2.5 Gbps is 2,500 Mbps. To reach it on one device you need a 2.5 GbE (or faster) network port on both the device and the router, and a suitable cable.
Is 1 Gbps the same as 1 GB/s?
No. 1 Gbps is 1,000 Mbps, which is 125 MB/s. 1 GB/s is eight times more: 8,000 Mbps.