Kilogram or Kilogram Force per Square Centimeter (kg/cm2 or kgf/cm2) is a pressure unit that has been largely superseded by the SI unit system of pascal units. It is the metric equivalent of pounds per square inch (psi). 1 kg/cm2 equals 98,066.5 Pascals.

Similarly to psi, kg/cm2 is part of a group of pressure units that relate pressure with weight. This is convenient in applications where a pressure is applied to generate a load such as in material testing. Typically a piston cylinder device is utilised to convert the applied pressure into a force. The force can be easily calculated in kilograms weight by multiplying the kg/cm2 pressure by the area to determine the weight applied in kilogrammes.

The most popular way of writing Kilogrammes per Square Centimeter is as kg/cm2, even though kgf/cm2 describes its meaning more accurately. The conventional way of writing it is misleading to some, since it reads as Mass / Unit Area and leads to confusion since pressure is always defined as Force / Unit Area.

To calculate a kg/cm2 reading into another pressure unit you can multiply it by one of the values in the table below. To convert a value to kgf/cm2 just click on the relevant unit below to obtain the reverse conversion factor.

Alternatively If you have a number of values to convert you can use the pressure converter to save time.

Find out how kg/cm2 is calculated from SI units and view the alternative ways of writing kg/cm2.

Contents

## kg/cm² Pressure Conversion Factors

- 0.980665 bar
- 14.2233 psi
- 980.665 mbar
- 98066.5 N/m²
- 98066.5 Pa
- 980.665 hPa
- 98.0665 kPa
- 0.0980665 MPa
- 1 kgf/cm²
- 10000 mmH2O 4°C (39.2°F)
- 1000 cmH2O 4°C (39.2°F)
- 10 mH2O 4°C (39.2°F)
- 393.701 inH2O 4°C (39.2°F)
- 32.8084 ftH2O 4°C (39.2°F)
- 735.559 mmHg 0°C (32°F)
- 73.5559 cmHg 0°C (32°F)
- 28.9590 inHg 0°C (32°F)
- 735.559 Torr
- 735559 mTorr
- 0.967841 atm
- 1 at
- 980665 dyn/cm²
- 227.573 oz/in²
- 735559 µHg 0°C (32°F)
- 0.00634971 tsi (uk, long)
- 0.00711167 tsi (usa, short)
- 1.02408 tsf (usa, short)
- 2048.16 psf
- 1000 g/cm²

*Please note that the conversion factors above are accurate to 6 significant figures.*

## kg/cm² Derivation

The calculation below shows how the pressure unit Kilogram per Square Centimetre (kg/cm²) is derived from SI Units.

#### Formula

- Pressure = Force / Area
- Force = Mass x Acceleration
- Acceleration = Distance / (Second x Second)

#### SI Units

- Mass: Kilogram (kg)
- Length: Metre (m)
- Time: Second (s)
- Force: Newton (N)
- Pressure: Pascal (Pa)

#### Input Values

- 1 Kilogram = 1 kg
- 1 Centimetre = 0.01 m
- 1 Square Centimetre = 0.01 m x 0.01 m = 0.0001 m²
- Acceleration = Standard Gravity = 9.80665 m/s²

#### Calculation

- 1 Kilogram Force = 1 kg x 9.80665 m/s² = 9.80665 N
- 1 kg/cm² Pressure = 9.80665 N / 0.0001 m² = 98066.5 Pa

## kg/cm² Alternate Descriptions

These are the different versions used for identifying kg/cm² that you may find elsewhere.

- Kilogram per Square Centimetre
- Kilogram Force per Square Centimetre
- Kilogram per Square Centimeter
- Kilogram Force per Square Centimeter
- Kilogrammes per Square Centimetre
- Kilogrammes Force per Square Centimetre
- Kilogrammes per Square Centimeter
- Kilogrammes Force per Square Centimeter
- Kilograms per Square Centimetre
- Kilograms Force per Square Centimetre
- Kilograms per Square Centimeter
- Kilograms Force per Square Centimeter
- kg/cm²
- kgf/cm²
- kg/sq cm
- kgf/sq cm
- kg/cm^2
- kgf/cm^2

## kg/cm² Help

Do you have a question about kg/cm²

### kg/m² vs kg/cm²

*Why not use kgf/m² instead of kgf/cm²?*

kgf/cm2 is equal to 0.980665 bar, 10 mH2O & 14.22 psi, so it is the right size of unit for many applications, particularly hydraulics where kgf and cm2 are measured separately.

kgf/m2 is equal to 0.0980665 mbar, 1mmH2O & 0.001422 psi, so it is a very small unit. Typically kgf is used in hydraulics so the pressure is high, and therefore this unit is not practical to use.

There is nothing stopping you using kgf/m2, it’s just not very useful for hydraulics, but it would be for low pressure, but other units such as inH2O and Pascals tend to be the most popular.