Gbps to Mbps Converter
Convert gigabits per second to megabits per second instantly. Essential for comparing network equipment specs, ISP plans, and data centre bandwidth.
Calculator
Formula: Mbps = Gbps × 1,000. There are 1,000 megabits in every gigabit.
Quick answer
Mbps = Gbps × 1,000. Reverse: Gbps = Mbps ÷ 1,000.
- 0.1 Gbps = 100 Mbps
- 0.5 Gbps = 500 Mbps
- 1 Gbps = 1,000 Mbps
- 2.5 Gbps = 2,500 Mbps
- 10 Gbps = 10,000 Mbps
Gbps to Mbps conversion table
| Gbps | Mbps | MB/s equivalent | Real-world context |
|---|---|---|---|
| 0.1 Gbps | 100 Mbps | 12.5 MB/s | Common home fibre plan |
| 0.3 Gbps | 300 Mbps | 37.5 MB/s | Mid-tier fibre broadband |
| 0.5 Gbps | 500 Mbps | 62.5 MB/s | High-speed fibre plan |
| 1 Gbps | 1,000 Mbps | 125 MB/s | Gigabit home / office fibre |
| 2.5 Gbps | 2,500 Mbps | 312.5 MB/s | Multi-gigabit fibre / 2.5G NIC |
| 5 Gbps | 5,000 Mbps | 625 MB/s | USB 3.2 Gen 1 transfer speed |
| 10 Gbps | 10,000 Mbps | 1,250 MB/s | 10GbE enterprise network |
| 25 Gbps | 25,000 Mbps | 3,125 MB/s | Data centre server link |
| 100 Gbps | 100,000 Mbps | 12,500 MB/s | Backbone / carrier network |
Formula explanation
Mbps = Gbps × 1,000
Reverse: Gbps = Mbps ÷ 1,000
The “giga” prefix means 10⁹ (one billion) in the SI decimal system. Since 1 Gbps = 1,000 Mbps, the conversion is straightforward multiplication. There is no byte/bit factor involved here — both units are in bits.
Example
A 2.5 Gbps network switch port: 2.5 × 1,000 = 2,500 Mbps. In MB/s that is 2,500 ÷ 8 = 312.5 MB/s.
Gbps vs GBps
Gbps (lowercase b) = gigabits per second. GBps (uppercase B) = gigabytes per second. Since 1 byte = 8 bits, 1 GBps = 8 Gbps. Networking always uses Gbps; storage benchmarks sometimes use GBps.
Where Gbps speeds appear
Consumer broadband
- 1 Gbps — Gigabit fibre, now widely available from major ISPs
- 2.5 Gbps / 5 Gbps — Multi-gigabit plans available in select cities
Networking hardware
- 1 GbE — Standard Gigabit Ethernet, found in most modern routers and laptops
- 2.5 GbE / 5 GbE — Increasingly common in Wi-Fi 6 routers
- 10 GbE — Enterprise switches and NAS devices
- 25 / 40 / 100 GbE — Data centre backbone links
Internal storage interfaces
- USB 3.2 Gen 1: 5 Gbps
- USB 3.2 Gen 2: 10 Gbps
- Thunderbolt 4 / USB4: 40 Gbps
Frequently asked questions
How do I convert Gbps to Mbps?
Multiply your Gbps value by 1,000. The formula is Mbps = Gbps × 1,000. For example, 2.5 Gbps × 1,000 = 2,500 Mbps.
How many Mbps is 1 Gbps?
1 Gbps equals 1,000 Mbps. In download speed terms, that is 125 MB/s — fast enough to download a 1 GB file in about 8 seconds under ideal conditions.
Is 1 Gbps the same as 1,000 Mbps?
Yes, exactly. “Giga” means one thousand “mega” in networking (using the SI decimal prefix where 1 Gbps = 10⁹ bits per second = 1,000 × 10⁶ bits per second = 1,000 Mbps).
How fast is 10 Gbps in MB/s?
10 Gbps = 10,000 Mbps = 1,250 MB/s. This is typical for 10 Gigabit Ethernet (10GbE) connections used in enterprise networks and high-end NAS devices.
What is 2.5 Gbps in Mbps?
2.5 Gbps equals 2,500 Mbps (312.5 MB/s). The 2.5 GbE standard is increasingly used in Wi-Fi 6 and Wi-Fi 6E routers to prevent the router’s wired port from becoming the bottleneck.
Do I need a Gbps plan for 4K streaming?
No. 4K streaming on a single screen requires about 25 Mbps (0.025 Gbps). Even a household with four simultaneous 4K streams needs only around 100 Mbps (0.1 Gbps). A 1 Gbps plan is more useful for large file downloads, backups, and households with many devices all active simultaneously.