kgf/cm² to PSI Converter
Unit ConversionConvert kilograms-force per square centimeter (kgf/cm², often written kg/cm²) to psi, including vacuum readings down to about -1.033 kgf/cm².
PSI
Equivalent pressure in pounds per square inch
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SponsoredThis converter turns kilograms-force per square centimeter (kgf/cm², usually written kg/cm²) into pounds per square inch. Enter a value and the psi result updates. 1 kgf/cm² is about 14.2233 psi.
Both units are built on a force. A kilogram-force is the weight of one kilogram under standard gravity, 9.80665 newtons, and a pound-force is the weight of one pound. Because both definitions are exact, the converter divides one exact value by the other instead of multiplying by a rounded number.
Gauges in kgf/cm² read pressure above the surrounding air, and compound gauges, which also read vacuum, go below zero. The converter accepts negative values down to a full vacuum, about -1.0332 kgf/cm², and shows a dash below that.
How to Convert kgf/cm² to PSI
Multiply the value by 98,066.5 to get pascals, then divide by about 6,894.757 to get psi. Together that is a factor of about 14.223343. For example, 7 kgf/cm² × 98,066.5 ÷ 6,894.757 is about 99.5634 psi.
To go from psi back to kgf/cm², multiply by about 0.070307, or divide by 14.2233. A tire at 32 psi is about 2.25 kgf/cm².
kg/cm² to PSI Chart
Common kgf/cm² values converted to psi, rounded to four decimal places, with kilopascals for comparison.
| kgf/cm² | PSI | Kilopascals |
|---|---|---|
| 0.5 kgf/cm² | 7.1117 psi | 49.0333 kPa |
| 1 kgf/cm² | 14.2233 psi | 98.0665 kPa |
| 2 kgf/cm² | 28.4467 psi | 196.133 kPa |
| 3 kgf/cm² | 42.67 psi | 294.1995 kPa |
| 4 kgf/cm² | 56.8934 psi | 392.266 kPa |
| 5 kgf/cm² | 71.1167 psi | 490.3325 kPa |
| 6 kgf/cm² | 85.3401 psi | 588.399 kPa |
| 7 kgf/cm² | 99.5634 psi | 686.4655 kPa |
| 8 kgf/cm² | 113.7867 psi | 784.532 kPa |
| 10 kgf/cm² | 142.2334 psi | 980.665 kPa |
| 15 kgf/cm² | 213.3501 psi | 1,470.9975 kPa |
| 20 kgf/cm² | 284.4669 psi | 1,961.33 kPa |
| 50 kgf/cm² | 711.1672 psi | 4,903.325 kPa |
| 100 kgf/cm² | 1,422.3343 psi | 9,806.65 kPa |
What Is kg/cm²
kg/cm² is the common way of writing kgf/cm², a kilogram-force per square centimeter. Older documents also write it kp/cm² (kilopond) or ksc. NIST SP 811 lists it at exactly 98,066.5 pascals and notes that it is the same as the technical atmosphere (at). It is not an SI unit, but it remains on older pressure gauges and on equipment specifications from some countries.
Strictly, a kilogram is a mass and a kilogram-force is a weight. The Pound-Force to Newtons Converter shows the same distinction on the US side, where a pound-force is about 4.448 newtons, while the Kilograms to Pounds Converter converts the masses themselves.
kgf/cm² vs Bar
1 kgf/cm² is 0.980665 bar, about 1.9% less than a bar, so the two are often treated as roughly equal on a gauge. For accurate work they are different units. Engine compression is one place both turn up, and the Compression Ratio to PSI Calculator estimates cranking pressure in psi.
Frequently Asked Questions
How many psi is 1 kg/cm²?
1 kg/cm² (kgf/cm²) is about 14.2233 psi.
Is kg/cm² the same as kgf/cm²?
On a pressure gauge, yes. kg/cm² is a shortened way of writing kilogram-force per square centimeter. A kilogram on its own is a mass, so kgf/cm² is the more precise symbol.
Is kgf/cm² the same as bar?
No. 1 kgf/cm² is exactly 98,066.5 pascals and 1 bar is exactly 100,000 pascals, so 1 kgf/cm² is 0.980665 bar. The difference is about 2%.
Can a kgf/cm² reading be negative?
Yes, on a gauge that also reads vacuum. The reading is measured from the surrounding air, so a partial vacuum shows below zero. The lowest possible value is a full vacuum, about -1.0332 kgf/cm² at standard air pressure.
How do I convert psi to kg/cm²?
Multiply psi by about 0.070307, or divide by about 14.2233. For example, 100 psi is about 7.0307 kgf/cm².
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