Convert Bar to Pascals
Bar to pascals is the conversion you need when a pressure reading is in bar but the formula, the standard, or the physics problem wants SI units. One bar is exactly 100,000 pascals, because the bar is defined as exactly that — so the number just grows by five zeros.
Bar to Pascals conversion table
| Bar (bar) | Pascals (Pa) |
|---|---|
| 1 | 100,000 |
| 2 | 200,000 |
| 3 | 300,000 |
| 5 | 500,000 |
| 10 | 1,000,000 |
| 20 | 2,000,000 |
| 50 | 5,000,000 |
| 100 | 10,000,000 |
| 500 | 50,000,000 |
| 1,000 | 100,000,000 |
The formula
To convert bar to pascals, multiply the number of bar by 100,000:
pascals = bar × 100,000
A worked example
Say you have a reading of 2 bar and want it in pascals:
2 × 100,000 = 200,000 Pa
So 2 bar is exactly 200,000 pascals.
Why the number is exact
The bar isn't measured against the pascal — it's defined as exactly 100,000 pascals. So the conversion carries no rounding at all: one bar is exactly 100,000 Pa, and any number of bar just shifts by five zeros. It's a clean, exact relationship, not an approximation.
When you'll use it
Feeding a bar reading from a gauge into an SI formula, working through a physics or engineering problem that wants pascals, or lining up a pressure spec that's written in bar with one written in pascals.
Frequently asked questions
How many pascals are in one bar?
Exactly 100,000 pascals. The bar is defined as exactly 100,000 Pa, so this is a fixed, exact number — nothing is rounded.
Why is a pascal such a small unit compared to a bar?
A pascal is one newton spread over one square meter, which is a tiny amount of pressure. It takes 100,000 of them to make one bar, which is roughly the pressure of the atmosphere around you.
Is the bar to pascals conversion exact?
Yes. The bar is defined as exactly 100,000 pascals, so the conversion is exact with nothing rounded away.