How to convert gigabits per second to megabits per second
One gigabit per second equals 1,000 megabits per second, so multiply the number of gigabits per second by 1,000:
Mbps = Gbps × 1,000
Gbps = Mbps ÷ 1,000 (1 Mbps = 0.001 Gbps)
Example: 2.5 Gbps → 2.5 × 1,000 = 2,500 Mbps.
Going the other way, divide by 1,000, or multiply by 0.001.
Everyday values
| Gigabits per second | Megabits per second | For example |
|---|---|---|
| 1 Gbps | 1,000 Mbps | gigabit fibre or Ethernet |
| 2.5 Gbps | 2,500 Mbps | 2.5 GbE networking |
| 10 Gbps | 10,000 Mbps | 10-gigabit Ethernet |
When you need this conversion
One Gbps is 1,000 Mbps, or 125 MB/s. Gigabit Ethernet ports and fibre plans are rated this way; real file transfers over gigabit Ethernet typically reach about 110–118 MB/s.
Gigabit per second to megabit per second conversion table
| Gbps | Mbps | Gbps | Mbps |
|---|---|---|---|
| 0.5 Gbps | 500 Mbps | 5.5 Gbps | 5,500 Mbps |
| 1 Gbps | 1,000 Mbps | 6 Gbps | 6,000 Mbps |
| 1.5 Gbps | 1,500 Mbps | 6.5 Gbps | 6,500 Mbps |
| 2 Gbps | 2,000 Mbps | 7 Gbps | 7,000 Mbps |
| 2.5 Gbps | 2,500 Mbps | 7.5 Gbps | 7,500 Mbps |
| 3 Gbps | 3,000 Mbps | 8 Gbps | 8,000 Mbps |
| 3.5 Gbps | 3,500 Mbps | 8.5 Gbps | 8,500 Mbps |
| 4 Gbps | 4,000 Mbps | 9 Gbps | 9,000 Mbps |
| 4.5 Gbps | 4,500 Mbps | 9.5 Gbps | 9,500 Mbps |
| 5 Gbps | 5,000 Mbps | 10 Gbps | 10,000 Mbps |
About the units
- Gigabit per second (Gbps): 1,000 megabits per second.
- Megabit per second (Mbps): 1,000,000 bits per second, the unit internet plans are sold in.
Both are units of data transfer rate. The conversion factor comes from the exact definitions above, so the calculator is exact; results are only rounded for display (up to six significant digits).
Frequently asked questions
How many megabits per second are in one gigabit per second?
One gigabit per second is 1,000 megabits per second. One megabit per second is 0.001 gigabits per second.
How do I convert gigabits per second to megabits per second?
Multiply the value in gigabits per second by 1,000. To go back, divide by 1,000.
What is 2.5 Gbps in megabits per second?
2.5 Gbps = 2,500 Mbps.
What is 10 Gbps in megabits per second?
10 Gbps = 10,000 Mbps.
Sources
- NIST Special Publication 811 (2008), Guide for the Use of the International System of Units (SI), Appendix B: conversion factors.
- NIST Handbook 44 (2024), Appendix C: General tables of units of measurement.
Last reviewed 5 October 2026. Results are estimates; see our disclaimer.