What this calculator does
Megabits per second (Mbps) and gigabits per second (Gbps) are both units of data-transfer speed, just at different scales: 1 Gbps equals exactly 1,000 Mbps. This mbps to gbps converter moves between the two in either direction, which comes up whenever an internet plan, network switch or server connection is quoted in one unit and needs comparing against another quoted in the other.
The mix-up worth avoiding is confusing this with mbps to mbs (megabits to megabytes), a completely different conversion that divides by 8 rather than 1,000, because a byte is 8 bits. Mbps to Gbps stays within the same "bits per second" family and is purely a change of scale, with no factor of 8 involved.
The formula
Divide Mbps by 1,000 to get Gbps, or multiply Gbps by 1,000 to get Mbps. The 1,000:1 ratio is fixed and does not depend on the connection type or provider.
| Term | Meaning |
|---|---|
| Mbps | Megabits per second: a unit of data-transfer speed equal to one million bits per second. |
| Gbps | Gigabits per second: a unit of data-transfer speed equal to one billion bits per second, or exactly 1,000 Mbps. |
The inputs explained
| Field | What to enter |
|---|---|
| Convert | Choose which direction to convert. |
| Amount | The speed to convert, in the unit selected as the starting point. |
When to use it
Comparing a home plan against a business or fibre plan
Home internet plans are usually advertised in Mbps while enterprise or data-centre connections are often quoted in Gbps; converting both to the same unit makes the comparison direct.
Checking hardware and cabling capacity
Network switches, routers and cabling standards are frequently rated in Gbps, while individual device speeds are shown in Mbps, so converting between the two checks whether hardware can actually deliver a connection’s full rated speed.
Reading data-centre or cloud bandwidth specs
Cloud providers and data centres commonly list bandwidth allowances in Gbps; converting to Mbps makes it easier to judge against a Mbps-based usage estimate or a smaller connection elsewhere.
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
Common Mbps speeds converted to Gbps
A range of typical Mbps speeds, converted to Gbps.
| Speed in Mbps | Gbps |
|---|---|
| 1,000 | 1.000 Gbps |
| 10,000 | 10.000 Gbps |
| 50,000 | 50.000 Gbps |
| 100,000 | 100.000 Gbps |
| 500,000 | 500.000 Gbps |
| 1,000,000 | 1,000.00 Gbps |
Common Gbps speeds converted to Mbps
A range of typical Gbps speeds, converted to Mbps.
Questions
Is 1 Gbps always exactly 1,000 Mbps?
Yes, when both are measured as decimal units of bits per second, which is the standard convention for network and internet speeds. This is a fixed unit-definition ratio, not an estimate.
Is Mbps to Gbps the same as Mbps to MB/s?
No. Mbps to Gbps is a change of scale within bits per second (÷1,000 or ×1,000). Mbps to MB/s converts from bits to bytes, dividing by 8, because a byte equals 8 bits. They are different conversions and should not be confused.
Why do internet plans use Mbps but data centres use Gbps?
It mostly reflects the scale each context deals in: home and mobile connections typically run in the tens to low hundreds of Mbps, while data-centre backbones and enterprise links often run at 1 Gbps or higher, so Gbps is the more convenient unit at that scale.
Does a higher Gbps rating guarantee faster real-world speed?
Not necessarily. The rated speed is a maximum capacity; actual throughput also depends on the weakest link in the chain, such as a router, cable, wireless connection or the server on the other end.
To convert network speed into download or upload time instead of a different speed unit, see the Mbps download time calculator. For converting bits per second into bytes per second, see the Mbps to MB/s calculator.