# Mbps to Gbps Converter

URL: https://speedycalculator.com/calculators/conversion/mbps-to-gbps/
Last updated: 2026-10-25

> Convert megabits per second (Mbit/s) to gigabits per second (Gbit/s): 1 megabit per second = 0.001 Gbit/s, so multiply by 0.001 or divide by 1,000. Both fields are editable, so you can also type in gigabits per second and get megabits per second back.

## Inputs

- Megabits per second (Mbit/s)

## Results

- Gigabits per second

## Formula

```
1 Mbit/s = 0.001 Gbit/s
1 Gbit/s = 1,000 Mbit/s
Gbit/s = Mbit/s × 0.001
```

## Explanation

One gigabit per second is 1,000 megabits per second. Fibre broadband and network switches are often marketed in Gbps.

### How to use the Mbps to Gbps Converter

- Type the number of megabits per second into the **Megabits per second** field. Decimals such as 500 are fine.
- Read the answer in **Gigabits per second** – it updates as you type, with no button to press.
- To convert the other way, type into **Gigabits per second** and the megabits per second are recalculated.
- Press **Copy results** to copy both values with the page title, or **Copy link** to share this exact conversion.

This page converts only Mbit/s ⇄ Gbit/s. Need a different unit? Use the general data rate converter, where you can choose any “from” and “to” unit.

### How it works

Both units measure data rate, so they are always in the same ratio: one megabit per second equals 0.001 gigabits per second. The calculator multiplies the number of megabits per second you type by 0.001 to give gigabits per second, and when you type into the gigabits per second field it divides by the same factor to give megabits per second. Because the ratio never changes, doubling the megabits per second always doubles the gigabits per second. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).

### How to convert megabits per second to gigabits per second

- Write down the value in megabits per second, for example **1,000 Mbit/s**.
- Multiply by the conversion factor 0.001 (because 1 megabit per second = 0.001 Gbit/s).
- 1,000 × 0.001 = **1 Gbit/s**.
- To go back from gigabits per second to megabits per second, divide by 0.001 – or multiply by 1,000.

### Mbit/s to Gbit/s conversion table

Megabits per secondGigabits per secondGigabits per secondMegabits per second10 Mbit/s0.01 Gbit/s1 Gbit/s1,000 Mbit/s100 Mbit/s0.1 Gbit/s2 Gbit/s2,000 Mbit/s300 Mbit/s0.3 Gbit/s5 Gbit/s5,000 Mbit/s500 Mbit/s0.5 Gbit/s10 Gbit/s10,000 Mbit/s1,000 Mbit/s1 Gbit/s20 Gbit/s20,000 Mbit/s2,500 Mbit/s2.5 Gbit/s50 Gbit/s50,000 Mbit/s10,000 Mbit/s10 Gbit/s100 Gbit/s100,000 Mbit/s1,000 Gbit/s1,000,000 Mbit/s

### What is a megabit per second?

Megabits per second (Mbps) is the unit internet providers use to sell connection speed. Divide by 8 for megabytes per second.

### What is a gigabit per second?

Gigabits per second (Gbps) is 1,000 Mbps, used for fibre broadband and network equipment.

### Common mistakes to avoid

Reading mbps (megabits) as mb/s (megabytes); divide megabits by 8 to get megabytes.

## Worked example

Inputs — Megabits per second: 1,000 Mbit/s.

Results — **Gigabits per second = 1 Gbit/s**.

## FAQ

**How many Mbps is 1 Gbps?**
1,000 Mbps.

**Is 1 Gbps 1 GB per second?**
No, it is about 125 MB/s.

**How many gigabits per second are in one megabit per second?**
1 Mbit/s = 0.001 Gbit/s.

**How many megabits per second are in one gigabit per second?**
1 Gbit/s = 1,000 Mbit/s.

**How do I convert megabits per second to gigabits per second?**
Multiply the number of megabits per second by 0.001. For example, 1,000 Mbit/s × 0.001 = 1 Gbit/s.

**How do I convert gigabits per second back to megabits per second?**
Divide by 0.001 (or multiply by 1,000), or simply type the value into the gigabits per second field above.

**What is 10 Mbit/s in gigabits per second?**
10 Mbit/s = 0.01 Gbit/s.

**What is 100 Mbit/s in gigabits per second?**
100 Mbit/s = 0.1 Gbit/s.

**Is this conversion exact?**
Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.

**Can I convert to other units on this page?**
This page converts only between megabits per second and gigabits per second. To pick any data rate unit, use the general data rate converter linked under Related calculators.

**What formula does the Mbps to Gbps Converter use?**
1 Mbit/s = 0.001 Gbit/s.


## Sources

- [NIST Special Publication 811 – Guide for the Use of the International System of Units](https://www.nist.gov/pml/special-publication-811)
- [NIST Handbook 44 Appendix C – General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition)