Gbps to Mbps Converter

How many Mbps are in 1 Gbps?

One gigabit per second is 1,000 megabits per second. Data-rate units follow the decimal SI prefixes everywhere, in network standards, on internet plans and in hardware datasheets, so there is no binary alternative to choose and the tool has no SI switch.

Mbps = Gbps × 1,000

Gbps = Mbps ÷ 1,000

A quick mental check: moving the decimal point three places to the right turns gigabits into megabits, so 0.5 Gbps is 500 Mbps and 2.5 Gbps is 2,500 Mbps.

Difference between Gbps and Mbps

Both measure how many bits cross a link each second. Mbps (megabits per second) is the unit of ordinary broadband and Wi-Fi; Gbps (gigabits per second) is used for fibre connections, data-centre links and fast local networks such as Gigabit Ethernet (1 Gbps) and 10 Gigabit Ethernet (10 Gbps).

Watch the capitalisation. Mbps with a lowercase b counts bits, whereas MBps or MB/s counts bytes, which are eight times larger. A 1 Gbps link can therefore carry at most 125 megabytes per second (1,000 ÷ 8), and real transfers land below that because of protocol overhead, disk speed and distance.

How to convert Gbps to Mbps

1. Type the speed in gigabits per second.
2. The Mbps box shows the value multiplied by 1,000.
3. Read or copy the result.

The answer is rounded to four decimal places, so tiny speeds still show a precise figure: 0.0001 Gbps is 0.1 Mbps. Clearing the Gbps box after typing resets the result to 0.

Gbps to Mbps conversion table

To convert the other way round, use the Mbps to Gbps converter.

Common mistakes

• Treating bits as bytes. A download manager showing 12.5 MB/s is moving 100 Mbps of data, not 12.5. Divide megabits by 8 to get megabytes.
• Using 1,024. Link speeds are decimal, so 1 Gbps is exactly 1,000 Mbps, unlike storage sizes where 1,024 sometimes appears.
• Reading a plan's headline speed as a guarantee. Many plans say "up to" a speed, and Wi-Fi link rates are typically well above the throughput you actually get.