Kg Cm2 To Psi Converter
Convert pressure from kilograms-force per square centimeter (kg/cm²) to pounds per square inch (psi).
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Understanding Pressure Units: kg/cm² and PSI
When dealing with pressure measurements, you may encounter various units depending on the industry, region, or application. Two common units are kilograms-force per square centimeter (kgf/cm² or simply kg/cm²) and pounds per square inch (PSI). This article explains what these units represent and how to convert between them.
What is kg/cm² (Kilogram-force per Square Centimeter)?
Kilogram-force per square centimeter is a metric unit of pressure. It represents the pressure exerted by a force of one kilogram-force applied over an area of one square centimeter. While not a standard SI unit (the SI unit is the Pascal), it is widely used in many parts of the world, particularly in automotive and industrial applications, for things like tire pressure and hydraulic systems.
It's sometimes referred to as "technical atmosphere" (at) and is very close in value to the standard atmosphere (atm).
What is PSI (Pounds per Square Inch)?
Pounds per square inch is an imperial unit of pressure. It is defined as the pressure resulting from a force of one pound-force applied to an area of one square inch. PSI is the standard pressure unit in the United States and is commonly used for measuring everything from tire pressure to water pressure in plumbing systems.
The Conversion Factor
The conversion between kgf/cm² and PSI is based on the relationships between kilograms and pounds, and between centimeters and inches.
- 1 kilogram-force ≈ 2.20462 pounds-force
- 1 square inch ≈ 6.4516 square centimeters
By combining these conversions, we arrive at the direct conversion factor:
1 kgf/cm² ≈ 14.2233 PSI
This means that one kilogram-force per square centimeter is approximately equal to 14.2233 pounds per square inch.
Conversion Formulas:
- To convert from kg/cm² to PSI: PSI = kg/cm² × 14.2233
- To convert from PSI to kg/cm²: kg/cm² = PSI / 14.2233
Quick Conversion Chart
| kgf/cm² | Approx. PSI |
|---|---|
| 1 | 14.22 |
| 2 | 28.45 |
| 2.1 | 29.87 (Common car tire pressure) |
| 5 | 71.12 |
| 7 | 99.56 |
| 10 | 142.23 |
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