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Millibar to kgf/cm² Converter

Convert mbar to kilogram-force per square centimeter (technical atmosphere). Essential for legacy hydraulic systems and gauge calibration.

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Category Temperature & Pressure
Note: kgf/cm2 is a legacy unit (Technical Atmosphere). Ensure your gauge matches this specific unit.
Pressure:---kgf/cm2
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About

Legacy hydraulic systems and older European machinery often rely on the technical atmosphere, denoted as kilogram-force per square centimeter. While modern engineering prefers SI units like Pascals, maintenance engineers frequently encounter gauges calibrated in this older standard. Converting from millibars requires a specific non-decimal factor. This tool is designed for precision engineering where rounding errors can cascade into calibration faults. It specifically addresses the needs of technicians working with pneumatic testing equipment or retrofitting older pressure vessels.

pressure conversion hydraulics technical atmosphere engineering tools gauge calibration

Formulas

The technical atmosphere is defined by the force of gravity acting on a kilogram mass over a square centimeter. The standard gravity g is approximately 9.80665 m/s2.

Pkgf ≈ Pmbar × 0.0010197162

This conversion factor is derived from:

1 kgf/cm2 = 980.665 mbar

Reference Data

Applicationmbarkgf/cm2
Low Pressure Switch100.0102
Atmospheric Pressure1013.251.0332
Light Pneumatics20002.0394
Standard Shop Air60006.1183
Commercial Boiler1000010.1972
Hydraulic Return Line1500015.2957
Medium Pressure Hydraulics100000101.9716
Heavy Equipment Hydraulics250000254.929
Injection Molding15000001529.57
Water Jet Cutting40000004078.86

Frequently Asked Questions

A Technical Atmosphere (at) is exactly equal to 1 kgf/cm². It is distinct from the Standard Atmosphere (atm). 1 at is approximately 0.967 atm. It was widely used in European engineering before the adoption of SI units.
The conversion factor involves the gravitational constant, which is not a round number in base-10. This leads to long decimal expansions. We provide a rounding feature to truncate these values for practical readability on gauges.
Yes, primarily in Russia, parts of Asia, and on older European machinery. You will often see "kg/cm²" printed on analog pressure gauges for tires and hydraulics.
Yes. Many tire gauges, especially in older metric regions, read in kgf/cm². 2.2 kgf/cm² is roughly equivalent to 2.2 bar or 31 psi.