kg/cm² to Bar Converter

To convert kg/cm² to bar, multiply by 0.980665. 10 kg/cm² is 9.80665 bar. On a gauge, kg/cm² means kilogram-force per square centimetre (kgf/cm²), exactly 98.0665 kPa.

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How It Works

kg/cm² is the older metric gauge unit. It is still printed on pumps, compressors, hydraulic equipment, boilers and tyre gauges made for Asian and Latin American markets, while European equipment reads in bar. The two are close enough to confuse: 1 kg/cm² is 1.9% less than 1 bar.

One kilogram-force is the weight of a kilogram under standard gravity, 9.80665 N, so 1 kgf/cm² is 98,066.5 Pa and 1 bar is 100,000 Pa.

Formula

bar = kg/cm² × 0.980665

Exact by definition: 98,066.5 Pa per kgf/cm² divided by 100,000 Pa per bar.

Worked Example

A pump nameplate gives a maximum working pressure of 6 kg/cm²:

6 × 0.980665 = 5.88399 bar

kg/cm² to Bar Table

kg/cm² bar psi kPa
0.5 kg/cm² 0.490333 bar 7.11167 psi 49.0333 kPa
1 kg/cm² 0.980665 bar 14.2233 psi 98.0665 kPa
2 kg/cm² 1.96133 bar 28.4467 psi 196.133 kPa
3 kg/cm² 2.942 bar 42.67 psi 294.2 kPa
4 kg/cm² 3.92266 bar 56.8934 psi 392.266 kPa
5 kg/cm² 4.90333 bar 71.1167 psi 490.333 kPa
6 kg/cm² 5.88399 bar 85.3401 psi 588.399 kPa
7 kg/cm² 6.86466 bar 99.5634 psi 686.466 kPa
8 kg/cm² 7.84532 bar 113.787 psi 784.532 kPa
10 kg/cm² 9.80665 bar 142.233 psi 980.665 kPa
12 kg/cm² 11.768 bar 170.68 psi 1,176.8 kPa
15 kg/cm² 14.71 bar 213.35 psi 1,471 kPa
20 kg/cm² 19.6133 bar 284.467 psi 1,961.33 kPa
25 kg/cm² 24.5166 bar 355.584 psi 2,451.66 kPa
30 kg/cm² 29.42 bar 426.7 psi 2,942 kPa
40 kg/cm² 39.2266 bar 568.934 psi 3,922.66 kPa
50 kg/cm² 49.0333 bar 711.167 psi 4,903.33 kPa
60 kg/cm² 58.8399 bar 853.401 psi 5,883.99 kPa
100 kg/cm² 98.0665 bar 1,422.33 psi 9,806.65 kPa

Going the other way? Use the bar to kg/cm² converter. To turn a pressure into metres of water column, use the bar to metres head converter.

FAQ

Common questions about converting kg/cm² to bar.

Frequently Asked Questions

How do I convert kg/cm² to bar?

Multiply kg/cm² by 0.980665. For example, 7 kg/cm² × 0.980665 = 6.86466 bar.

Is 1 kg/cm² equal to 1 bar?

Nearly. 1 kg/cm² is 0.980665 bar, 1.9% less. Treating them as equal is fine for reading a gauge, but use the factor when setting a relief valve or checking a pressure rating.

What is kg/cm² in psi?

1 kg/cm² is 14.2233 psi, so 10 kg/cm² is 142.233 psi. Tyre and compressor gauges often show both scales.

Is kg/cm² the same as kgf/cm²?

Yes. A kilogram is a mass, so a pressure gauge marked kg/cm² means kilogram-force per square centimetre, kgf/cm². The same unit is called the technical atmosphere (at), and is 0.967841 standard atmospheres.

How many metres of water is 1 kg/cm²?

Exactly 10 metres of water column on the conventional basis (1,000 kg/m³ under standard gravity), which is why older pump data gives kg/cm² and metres of head side by side.

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