Bars to Kilopascals Converter

1 bar (bar) equals 100 kilopascals (kPa).

Quick answer

One bar is exactly 100 kPa: multiply bar by 100.

  • 1 bar = 100 kilopascals
  • 1 kilopascal = 0.01 bars
  • Formula: kPa = bar × 100
  • Quick estimate: multiply by 100: 2.5 bar = 250 kPa.

1 bar = 100 kilopascals

How to convert bars to kilopascals

kPa = bar × 100

To convert bars to kilopascals, multiply the number of bars by 100.

Example: 42 bar to kPa

  1. Start with the value in bars: 42 bar.
  2. Multiply by 100: 42 × 100 = 4,200.
  3. Result: 42 bars = 4,200 kilopascals.

Going the other way, 1 kilopascal = 0.01 bars, so to convert kilopascals back to bars you divide by the same number. See kilopascals to bars.

Where the conversion factor comes from

The bar was defined as exactly 100,000 Pa, close to atmospheric pressure. 1 bar = 100 kPa = 1,000 hPa (mbar).

Mental math: bar to kPa in your head

Move the decimal point two places right.

When you need to convert bars to kilopascals

  • Tire pressures (Europe uses bar, Canada and Australia kPa).

Common mistakes

  • Treating a bar as exactly one atmosphere (1 atm = 1.01325 bar).

Everyday bars in kilopascals

ExampleBarsKilopascals
Car tire2.3 bar230 kPa
Espresso machine9 bar900 kPa
Atmospheric pressure1.01325 bar101.33 kPa

Bars to kilopascals conversion table

Bars (bar)Kilopascals (kPa)
0.1 bar 10 kPa
0.2 bar 20 kPa
0.3 bar 30 kPa
0.4 bar 40 kPa
0.5 bar 50 kPa
0.6 bar 60 kPa
0.7 bar 70 kPa
0.8 bar 80 kPa
0.9 bar 90 kPa
1 bar 100 kPa
1.5 bar 150 kPa
2 bar 200 kPa
2.5 bar 250 kPa
3 bar 300 kPa
3.5 bar 350 kPa
4 bar 400 kPa
4.5 bar 450 kPa
5 bar 500 kPa
6 bar 600 kPa
7 bar 700 kPa
7.5 bar 750 kPa
8 bar 800 kPa
9 bar 900 kPa
10 bar 1,000 kPa
11 bar 1,100 kPa
12 bar 1,200 kPa
13 bar 1,300 kPa
14 bar 1,400 kPa
15 bar 1,500 kPa
16 bar 1,600 kPa
17 bar 1,700 kPa
18 bar 1,800 kPa
19 bar 1,900 kPa
20 bar 2,000 kPa
21 bar 2,100 kPa
22 bar 2,200 kPa
23 bar 2,300 kPa
24 bar 2,400 kPa
25 bar 2,500 kPa
26 bar 2,600 kPa

More bar to kPa values

What is a bar?

The bar is a metric unit of pressure equal to 100,000 pascals, very close to atmospheric pressure at sea level (1 atm = 1.01325 bar).

More about bars →

What is a kilopascal?

The kilopascal is 1,000 pascals, about 0.145 psi.

More about kilopascals →

Convert bars to other units

Convert other units to kilopascals

Frequently asked questions

How many kilopascals are in a bar?

One bar is 100 kilopascals.

How many bars are in a kilopascal?

One kilopascal is 0.01 bars.

What is the formula to convert bars to kilopascals?

kPa = bar × 100.

How many kPa in a bar?

Exactly 100 kPa.