Grams or Grams Force per Square Centimetre is a cgs system (centimetre, gram, second) pressure unit which is now largely obsolete and officially superceded by the SI system of units. 1 Gram per Square Centimeter is 98.0665 pascals.

The gf/cm² pressure unit is comparable in value to 1 mbar (hPa) and is used for low pressure measurements of gas burners, and pneumatic valves for example. It is also used as a measure of stress of biological and textile material.

You will find the conversion value of 1 g/cm2 in other units below.

To convert another unit into g/cm2 please click on the relevant unit in the table below.

To convert many pressure values from or into Grams Force per Square Centimetre please use our online conversion calculator.

View the calculation for deriving g/cm2 from SI units and check the different ways of expressing g/cm2.

**Low pressure measurement products**

- Minus 100 pascal suction pressure transmitter
- Draft Pressure Sensors
- Natural gas compatible pressure switch for setting from 5 to 20 mbar
- 100 inches H2O pressure gauge

## Conversion Factors

- 0.000980665 bar
- 0.0142233 psi
- 0.980665 mbar
- 98.0665 N/m²
- 98.0665 Pa
- 0.980665 hPa
- 0.0980665 kPa
- 0.0000980665 MPa
- 0.001 kg/cm²
- 10 mmH2O 4°C (39.2°F)
- 1 cmH2O 4°C (39.2°F)
- 0.01 mH2O 4°C (39.2°F)
- 0.393701 inH2O 4°C (39.2°F)
- 0.0328084 ftH2O 4°C (39.2°F)
- 0.735559 mmHg 0°C (32°F)
- 0.0735559 cmHg 0°C (32°F)
- 0.0289590 inHg 0°C (32°F)
- 0.735559 Torr
- 735.559 mTorr
- 0.000967841 atm
- 0.001 at
- 980.665 dyn/cm²
- 0.227573 oz/in²
- 735.559 µHg 0°C (32°F)
- 0.00000634971 tsi (uk, long)
- 0.00000711167 tsi (usa, short)
- 0.00102408 tsf (usa, short)
- 2.04816 psf
- 1 g/cm²

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

**Low pressure measurement products**

- Solvent compatible +/-100mWG dp transmitter with PTFE seals
- -5 to +5 psi g low compound range 4 to 20 mA output OEM pressure sensor
- 10Pa diff range 0-20mA output air pressure sensor for automotive component testing
- 100mbar dp range 0-5Vdc amplified output air pressure sensor for aerospace research test rig use

## Derivation

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

#### Formula

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

#### SI Units

- Mass: kilogram (kg)
- Length: metre (m)
- Time: second (s)
- Force: newton (N)
- Pressure: pascal (Pa)

#### Input Values

- 1 Gram = 0.001 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 Gram Force = 0.001 kg x 9.80665 m/s² = 0.00980665 N
- 1 g/cm² Pressure = 0.00980665 N / 0.0001 m² = 98.0665 Pa

**Low pressure measurement products**

- -5 to +5 psi g low compound range 4 to 20 mA output OEM pressure sensor
- Ethylene glycol antifreeze compatible 300 pascal dp sensor
- 1kPa diff pressure transducer for building air ventilation monitoring
- Standby generator 20inH2Og range 0-5Vdc output natural gas and propane pressure sensor

## Alternate Descriptions

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

- Gram per Square Centimetre
- Gram Force per Square Centimetre
- Gram per Square Centimeter
- Gram Force per Square Centimeter
- Grammes per Square Centimetre
- Grammes Force per Square Centimetre
- Grammes per Square Centimeter
- Grammes Force per Square Centimeter
- Grams per Square Centimetre
- Grams Force per Square Centimetre
- Grams per Square Centimeter
- Grams Force per Square Centimeter
- g/cm²
- gf/cm²
- g/sq cm
- gf/sq cm
- g/cm^2
- gf/cm^2
- gm/cm²
- gmf/cm²
- gm/sq cm
- gmf/sq cm
- gm/cm^2
- gmf/cm^2
- gms/cm²
- gmsf/cm²
- gms/sq cm
- gmsf/sq cm
- gms/cm^2
- gmsf/cm^2

## Conversion Table

Select a look up table for converting a pressure reading in grams force per square centimetre to other measurement units.

- psi » 1 to 2,000 g/cm² → 0.0142233 to 28.4467 psi

**Low pressure measurement products**

- 0-50 mbarg 4-20 mA output natural gas monitoring pressure sensor
- -0.5 to +0.5 bar gauge 0-5 volts output compound range pressure sensor
- 2 mH2O hydrostatic range ratiometric 0.5-4.5 volts output pressure sensor
- 10 mmWC draft fan differential pressure transmitter