The mmWC to kg/cm² Conversion Calculator helps engineers, technicians, instrumentation professionals, and students instantly convert pressure values from Millimeter of Water Column (mmWC) to Kilogram per Square Centimeter (kg/cm²). This pressure conversion is widely used in industrial automation, process instrumentation, hydraulics, pneumatics, HVAC systems, water treatment plants, and pressure transmitter calibration. The calculator provides accurate results using the standard engineering conversion factor, making pressure calculations quick, reliable, and error free.
This mmWC to Kg/cm² calculator helps engineers, technicians, and students quickly convert pressure from Millimeter of Water Column (mmWC) to Kilogram per square centimeter (Kg/cm²). Both units are widely used in hydraulics, pneumatics, water treatment, and industrial process instrumentation.
Why Use This mmWC to kg/cm² Calculator?
This calculator eliminates manual calculations and provides instant pressure conversions for engineering applications. It is useful during instrument calibration, process design, maintenance activities, hydraulic calculations, pneumatic systems, boiler draft measurement, ventilation systems, and differential pressure measurements. Engineers can quickly obtain accurate pressure values without referring to lengthy conversion tables.
Definition: Millimeter of Water Column (mmWC)
The Millimeter of Water Column (mmWC) is a unit of pressure derived from the force exerted by a column of water that is 1 millimeter in height. It is often used in low-pressure applications such as ventilation, water distribution systems, and other industrial processes.
Definition: Kilogram per square centimeter (Kg/cm²)
The Kilogram per square centimeter (Kg/cm²) is a metric unit of pressure that indicates the force in kilograms applied per square centimeter. It is widely used in engineering and industrial applications, especially in hydraulic and pneumatic systems.
Formula for mmWC to Kg/cm² Conversion:
Pressure in Kg/cm²=Pressure in mmWC×0.00009807
Where:
- mmWC= Pressure in millimeters of water column
- Kg/cm2= Equivalent pressure in kilograms per square centimeter
How the Conversion Factor is Calculated
The conversion factor is derived from the relationship between the hydrostatic pressure produced by a one millimeter column of water under standard gravity and the equivalent force expressed in kilogram per square centimeter.
1 mmWC = 9.80665 Pascal
1 kg/cm² = 98,066.5 Pascal
Therefore,
1 mmWC = 0.0000980665 kg/cm²
For engineering calculations, the conversion factor is rounded to 0.00009807.
How to Convert mmWC to Kg/cm²: Example Calculation
Suppose you have a pressure of 1000 mmWC.
To convert it to Kg/cm²:
1000×0.00009807=0.09807?Kg/cm²
So, 1000 mmWC is equal to 0.09807 Kg/cm².
Quick Reference Conversion Table for mmWC to Kg/cm²
| mmWC (Millimeter of Water Column) | Kg/cm² (Kilogram per cm²) |
| 1 | 0.00009807 |
| 10 | 0.0009807 |
| 50 | 0.004903 |
| 100 | 0.009807 |
| 250 | 0.02452 |
| 500 | 0.04903 |
| 750 | 0.07355 |
| 1000 | 0.09807 |
| 2000 | 0.19614 |
| 5000 | 0.49035 |
| 7500 | 0.73553 |
| 10000 | 0.98070 |
| 15000 | 1.47105 |
| 20000 | 1.96140 |
| 50000 | 4.90350 |
| 100000 | 9.80700 |
Common Pressure Unit Equivalents
| Unit | Equivalent |
| 1 mmWC | 9.80665 Pa |
| 1 mmWC | 0.00980665 kPa |
| 1 mmWC | 0.00009807 kg/cm² |
| 1 mmWC | 0.001422 psi |
| 1 mmWC | 0.00009807 bar |
| 1 mmWC | 0.03937 inch WC |
Applications of mmWC to kg/cm² Conversion
- Hydraulics and Pneumatics: Convert mmWC readings to Kg/cm² for accurate system design and performance monitoring.
- Water Treatment and Distribution Systems: Suitable for converting pressure readings in water columns to the commonly used Kg/cm² unit.
- Industrial Applications: Useful for converting pressure values in low-pressure control environments.
This mmWC to Kg/cm² conversion calculator is a must-have tool for professionals requiring quick and precise pressure unit conversions.
Difference Between mmWC and kg/cm²
| mmWC | kg/cm² |
| Low pressure unit | Higher pressure unit |
| Based on water column | Based on kilogram force |
| Used in HVAC | Used in hydraulics |
| Small pressure measurements | High pressure measurements |
| Common in DP measurement | Common in industrial equipment |
FAQ on mmWC to Kg/cm² Calculation
Why is mmWC used in HVAC?
mmWC is used in HVAC because it accurately measures low air and gas pressures in ducts, filters, fans, and ventilation systems where higher pressure units are less suitable.
Is mmWC the same as mmH₂O?
Yes. mmWC (Millimeter of Water Column) and mmH₂O (Millimeter of Water) represent the same pressure unit and are used interchangeably in engineering applications.
What industries use kg/cm²?
kg/cm² is widely used in oil and gas, chemical plants, power generation, water treatment, hydraulics, pneumatics, and industrial process automation.
Is kg/cm² an SI unit?
No. kg/cm² is not an SI unit. The SI unit of pressure is the Pascal (Pa), although kg/cm² is still commonly used in industry.
How many Pascal are in 1 mmWC?
1 mmWC = 9.80665 Pa
This conversion is commonly used in engineering and instrumentation calculations.
How many mmWC equal 1 kg/cm²?
1 kg/cm² = 10,197.16 mmWC
This conversion is widely used for pressure measurement and calibration.
What is the difference between mmWC and mmHg?
mmWC measures pressure using a water column, while mmHg uses a mercury column. Since mercury is denser than water, 1 mmHg ≈ 13.6 mmWC.
How accurate is this calculator?
This calculator uses the standard engineering conversion factor, providing accurate results suitable for most industrial and engineering applications.
Can I use this calculator for pressure transmitter calibration?
Yes. It is useful for converting pressure units during pressure transmitter calibration and routine instrumentation maintenance.
Why is standard gravity used in pressure conversion?
Standard gravity (9.80665 m/s²) ensures consistent and accurate pressure conversions used worldwide in engineering and scientific calculations.
Here you can refer more Online Instrumentation Calculators Collections
