---
title: "Bars to Millibars — bar to mbar converter"
description: "1 bar = 1,000 millibars. Convert bars to millibars with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/bar-to-millibars/
site: "At One Place"
---

# Bars to millibars

**1 bar in millibars: 1 bar = 1,000 mbar**

mbar = bar × 1,000

To convert bars to millibars, multiply by 1,000. The table below gives the values people look up most often, and the converter works for any number.

## Bars to millibars table

*Common bar values converted to millibars.*

| Bars | Millibars |
| --- | --- |
| 1 bar | 1,000 |
| 2 bar | 2,000 |
| 3 bar | 3,000 |
| 4 bar | 4,000 |
| 5 bar | 5,000 |
| 10 bar | 10,000 |
| 15 bar | 15,000 |
| 20 bar | 20,000 |
| 25 bar | 25,000 |
| 30 bar | 30,000 |
| 40 bar | 40,000 |
| 50 bar | 50,000 |
| 75 bar | 75,000 |
| 100 bar | 100,000 |
| 250 bar | 250,000 |
| 500 bar | 500,000 |
| 1,000 bar | 1,000,000 |

## How the conversion works

The relationship is mbar = bar × 1,000. Both units measure pressure, so the conversion is a fixed factor that never changes.

## Common questions

### How many millibars are in one bar?

One bar equals 1,000 millibars. mbar = bar × 1,000.

### How do you convert bars to millibars?

Use mbar = bar × 1,000. So 10 bar is 10,000 mbar.

### How many bars are in one millibar?

One millibar equals 0.001 bars, which is the reverse of the conversion above.

## Related pages

- [Millibars to Bars](https://atoneplace.net/convert/millibars-to-bar/)
- [Bars to Pascals](https://atoneplace.net/convert/bar-to-pascals/)
- [Bars to Kilopascals](https://atoneplace.net/convert/bar-to-kilopascals/)
- [Bars to Standard atmospheres](https://atoneplace.net/convert/bar-to-atmospheres/)
- [Bars to Pounds per square inch](https://atoneplace.net/convert/bar-to-psi/)
- [Bars to Torrs](https://atoneplace.net/convert/bar-to-torr/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)