How many kilopascals are in 1 bar?

1 bar equals 100 kPa. This is an exact conversion factor defined by NIST.

How do I convert bars to kilopascals?

Multiply the value in bar by the conversion factor. For example, 10 bar = 1000 kPa. Use our calculator above for instant results.

Is the bars to kilopascals conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert bars to kilopascals offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between bars and kilopascals?

Bars (bar) and Kilopascals (kPa) are both units of pressure but belong to different measurement systems. 1 bar = 100 kPa. Use the converter above to switch between them instantly.

Bars to Kilopascals (bar → kPa) — Free Online Converter

bar → kPa Reference Table

bar	kPa
0.001 bar	0.1 kPa
0.002 bar	0.2 kPa
0.003 bar	0.3 kPa
0.004 bar	0.4 kPa
0.005 bar	0.5 kPa
0.006 bar	0.6 kPa
0.007 bar	0.7 kPa
0.008 bar	0.8 kPa
0.009 bar	0.9 kPa
0.01 bar	1 kPa
0.02 bar	2 kPa
0.03 bar	3 kPa
0.04 bar	4 kPa
0.05 bar	5 kPa
0.06 bar	6 kPa
0.07 bar	7 kPa
0.08 bar	8 kPa
0.09 bar	9 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
5.5 bar	550 kPa
6 bar	600 kPa
6.5 bar	650 kPa
7 bar	700 kPa
7.5 bar	750 kPa
8 bar	800 kPa
8.5 bar	850 kPa
9 bar	900 kPa
9.5 bar	950 kPa
10 bar	1000 kPa
11 bar	1100 kPa
12 bar	1200 kPa
13 bar	1300 kPa
14 bar	1400 kPa
15 bar	1500 kPa
16 bar	1600 kPa
17 bar	1700 kPa
18 bar	1800 kPa
19 bar	1900 kPa
20 bar	2000 kPa
25 bar	2500 kPa
30 bar	3000 kPa
35 bar	3500 kPa
40 bar	4000 kPa
45 bar	4500 kPa
50 bar	5000 kPa
55 bar	5500 kPa
60 bar	6000 kPa
65 bar	6500 kPa
70 bar	7000 kPa
75 bar	7500 kPa
80 bar	8000 kPa
85 bar	8500 kPa
90 bar	9000 kPa
95 bar	9500 kPa
100 bar	10000 kPa
120 bar	12000 kPa
125 bar	12500 kPa
130 bar	13000 kPa
140 bar	14000 kPa
150 bar	15000 kPa
160 bar	16000 kPa
175 bar	17500 kPa
180 bar	18000 kPa
200 bar	20000 kPa
225 bar	22500 kPa
250 bar	25000 kPa
275 bar	27500 kPa
300 bar	30000 kPa
350 bar	35000 kPa
400 bar	40000 kPa
450 bar	45000 kPa
500 bar	50000 kPa
600 bar	60000 kPa
700 bar	70000 kPa
750 bar	75000 kPa
800 bar	80000 kPa
900 bar	90000 kPa
1000 bar	100000 kPa
1200 bar	120000 kPa
1250 bar	125000 kPa
1500 bar	150000 kPa
1750 bar	175000 kPa
2000 bar	200000 kPa
2500 bar	250000 kPa
3000 bar	300000 kPa
4000 bar	400000 kPa
4500 bar	450000 kPa
5000 bar	500000 kPa
6000 bar	600000 kPa
7000 bar	700000 kPa
7500 bar	750000 kPa
8000 bar	800000 kPa
9000 bar	900000 kPa
10000 bar	1000000 kPa
15000 bar	1500000 kPa
20000 bar	2000000 kPa
25000 bar	2500000 kPa
50000 bar	5000000 kPa
75000 bar	7500000 kPa
100000 bar	10000000 kPa

Values based on NIST SP 811 conversion factors

Why Convert Bars to Kilopascals?

Converting between bars (bar) and kilopascals (kPa) is one of the most common pressure conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert bar to kPa saves time and prevents errors.

Pressure conversions between bar and kPa are vital in automotive maintenance, meteorology, and scuba diving. Tire pressure affects fuel efficiency and safety, requiring drivers to convert between PSI and bar depending on the gauge used. Divers must strictly monitor pressure to avoid decompression sickness, often needing to convert depth and tank pressure readings. In weather forecasting, atmospheric pressure changes indicate approaching storms, with data often shared in different units globally. Failing to convert pressure accurately can lead to equipment failure, tire blowouts, or life-threatening situations underwater.

How to Convert Bars to Kilopascals

To convert bars to kilopascals, use the following formula:

kPa = bar × 100

Example: 1 bar = 100 kPa

For example, 5 bar = 500 kPa, 10 bar = 1000 kPa, and 100 bar = 10000 kPa. For larger values, 1000 bar = 100000 kPa. Conversely, 1 kPa = 0.01 bar. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Mistakes to Avoid

Gauge vs Absolute: confusing gauge pressure (psig) with absolute pressure (psia).
Bar vs Pascal: 1 Bar is 100,000 Pascals, not 10 or 100.
Atmosphere variations: confusing standard atm with technical atm.

Pro Tips

Tire checks: Check tire pressure when cold (tires heat up and pressure rises while driving).
PSI rule: Typical car tires are 30-35 PSI.
Altitude effect: Air pressure drops as you go higher (ears popping).

What is a Bar?

The bar is a metric unit of pressure, exactly equal to 100,000 pascals. It is slightly less than the average atmospheric pressure at sea level.

Bars are commonly used in meteorology, scuba diving, and industry to measure fluid pressure and tire pressure (in some countries).

What is a Kilopascal?

A unit of pressure equal to 1,000 Pascals.

Meteorology and tire pressure.

Bars → Kilopascals

Bars to Kilopascals Formula