Mbps to Gbps Converter
Enter a speed in Mbps and the same speed in Gbps appears while you type, rounded to four decimals. The guide explains the factor and lists common link speeds.
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Created by the Reeliy Editorial Team. Last updated: Oct 19, 2026
How many Mbps are in one Gbps?
One gigabit per second is 1,000 megabits per second. Data rates use the decimal SI prefixes, in which giga is a thousand times mega, so there is no 1,024 in this conversion and no binary-versus-decimal choice to make.
Gbps = Mbps ÷ 1,000Equivalently, 1 Mbps = 0.001 Gbps.
This is the rule behind the familiar labels on routers and network cards: a "gigabit" port is one that runs at 1,000 Mbps.
Difference between Mbps and Gbps
Both are rates of bits per second, a thousandfold apart. Mbps is the everyday scale of home internet plans, Wi-Fi and video streaming. Gbps is the scale of fibre connections, data-centre links and the faster Ethernet standards, such as 2.5, 5 and 10 Gbps.
Neither unit tells you how many bytes arrive each second. To compare a speed with the MB/s shown by a download manager, divide by eight, or use the Mbps to MB/s converter.
How to convert Mbps to Gbps
- Take the speed in megabits per second.
- Divide by 1,000, which moves the decimal point three places left.
- Read the answer as gigabits per second.
The converter rounds to four decimal places, so very small speeds under about 0.05 Mbps appear as 0 Gbps.
Example: comparing two plans
A provider lists one plan at 2,500 Mbps and another at 940 Mbps. In gigabits per second those are 2,500 ÷ 1,000 = 2.5 Gbps and 940 ÷ 1,000 = 0.94 Gbps. The second is just under a gigabit, which is roughly what a single device can sustain over a gigabit Ethernet link once framing overhead is taken out.
Mbps to Gbps conversion table
| Megabits per second (Mbps) | Gigabits per second (Gbps) |
|---|---|
| 1 | 0.001 |
| 10 | 0.01 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
| 2,500 | 2.5 |
| 5,000 | 5 |
| 10,000 | 10 |
Where you meet Gbps
Gigabit figures turn up wherever a link has to carry many streams at once. Fibre-to-the-home plans are often sold at 1 Gbps or more, multi-gig Ethernet ports on newer routers and motherboards run at 2.5 or 10 Gbps, and servers in a data centre are commonly joined by 10, 25 or 100 Gbps links.
For a household the headline number matters less than how it divides. A 1 Gbps plan shared by four people who each stream at 25 Mbps still leaves 1,000 − 4 × 25 = 900 Mbps, or 0.9 Gbps, free for everything else.
Common mistakes
- Dividing by 1,024. Storage units are sometimes binary; network rates are not. Use 1,000.
- Confusing Gbps with GB/s. A 1 Gbps link carries at most 125 megabytes per second, not a gigabyte.
- Assuming a gigabit plan delivers a gigabit everywhere. The slowest device, cable or Wi-Fi hop sets the speed you actually get.
For the reverse direction use the Gbps to Mbps converter. To turn a speed into a download time, use the download time calculator; for smaller units there is the Mbps to Kbps converter.
Frequently asked questions
How many Mbps make 1 Gbps?
1,000 Mbps make 1 Gbps. Divide a figure in Mbps by 1,000 to get Gbps.
Is 1,000 Mbps the same as 1 Gbps?
Yes. The two are the same speed written with different prefixes.
How many MB/s is 1 Gbps?
Dividing by 8 gives 125 megabytes per second in SI terms. Real transfers come out lower because of protocol overhead.
Why does 0.04 Mbps show as 0 Gbps?
The result is rounded to four decimal places, and 0.04 Mbps is 0.00004 Gbps, which rounds down to 0.
References
Cite this converter and page
If you use this page in your work, you can cite it as:
Reeliy Editorial Team. (2026). Mbps to Gbps Converter. Reeliy. https://reeliy.com/converters/convert-mbps-to-gbps“Mbps to Gbps Converter.” Reeliy, 2026, https://reeliy.com/converters/convert-mbps-to-gbps.