Mbps to Gbps converter
To convert Mbps to Gbps, divide by 1,000. A 940 Mbps speed test result is 0.94 Gbps, and a 2,500 Mbps plan is 2.5 Gbps.
Tip: paste a reading like “12.4 MB/s” and the unit is picked for you.
1 Mbps equals:
- bps1,000,000
- kbps1,000
- Mbps1
- Gbps0.001
- B/s125,000
- kB/s125
- MB/s0.125
- GB/s0.000125
- MiB/s0.119209
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Formula
1 Mbps = 1,000,000 bits and 1 Gbps = 1,000,000,000 bits, so:
Common conversions
| Mbps | Gbps |
|---|---|
| 100 Mbps | 0.1 Gbps |
| 300 Mbps | 0.3 Gbps |
| 500 Mbps | 0.5 Gbps |
| 940 Mbps | 0.94 Gbps |
| 1,000 Mbps | 1 Gbps |
| 2,000 Mbps | 2 Gbps |
| 2,500 Mbps | 2.5 Gbps |
| 5,000 Mbps | 5 Gbps |
| 10,000 Mbps | 10 Gbps |
Why a gigabit plan shows about 940 Mbps
A speed test on a wired gigabit connection typically peaks around 940 Mbps, or 0.94 Gbps. The line is running at 1 Gbps; the difference is packet overhead. With standard 1,500-byte packets and TCP timestamps, each packet carries 1,448 bytes of data out of 1,538 bytes on the wire, and 1,000 × 1,448 ÷ 1,538 ≈ 941 Mbps. A result in the 900s is a full-speed gigabit connection.
Examples: multi-gig plans
- 2,000 Mbps (2 Gbps) plan. A computer plugged into a Gigabit Ethernet port can only use up to about 0.94 Gbps of it. To see more, the router port, cable and network adapter all need to support 2.5GBASE-T or faster.
- 2,500 Mbps (2.5 Gbps). Matches a 2.5 GbE port exactly, so tests land a little below 2.5 Gbps for the same overhead reason.
- 5,000 Mbps (5 Gbps) or 10,000 Mbps (10 Gbps). Only a 10GBASE-T or similar port can carry the full rate to a single device; otherwise the benefit shows up only when several devices download at once.
Whether a faster tier is worth paying for depends on what you do at the same time; is gigabit worth it? walks through the numbers, and what can my speed handle checks a plan against a household.
Pitfall: Gbps vs GB/s
Gbps is gigabits; GB/s is gigabytes. 1 Gbps is 0.125 GB/s, so a 2.5 Gbps plan downloads at most 312.5 MB/s. For byte-based copy speeds, use Mbps to GB/s. To convert marketing figures in Gbps back to Mbps, see Gbps to Mbps.
Frequently asked questions
How many Gbps is 1,000 Mbps?
1,000 Mbps is exactly 1 Gbps. Divide Mbps by 1,000 to get Gbps.
Why does my 1 Gbps plan only test at 940 Mbps?
Headers take part of each packet. With 1,500-byte packets, 1,448 bytes of each 1,538 on the wire are data, so the maximum payload rate is about 941 Mbps, or 0.94 Gbps. That result means the connection is working at full speed.
Can one computer use a 2 Gbps plan?
Only if its network adapter, cable and router port are all faster than gigabit, for example 2.5 GbE. On a 1 Gbps port it is limited to about 0.94 Gbps.