Kilopascals (kPa) to kgf/cm² Converter
Convert Kilopascals (kPa) to Kilogram-force per Square Centimeter (kgf/cm²), also known as the technical atmosphere (at). Accurate for legacy engineering systems.
About
The unit Kilogram-force per square centimeter (kgf/cm2), often abbreviated as "at" (Technical Atmosphere), is a legacy pressure unit based on the gravitational force of one kilogram pressing on one square centimeter. Although largely replaced by SI units, it persists in older European hydraulic systems, Russian technical documentation, and pressure vessel gauges.
Maintenance engineers working with older pneumatics or retrofitting industrial boilers often need to verify safety limits specified in kgf/cm2 against modern sensors reading in kPa. This converter handles the gravitational constant precision required for these translations.
Formulas
The conversion relies on the standard gravity constant (g). The formula is:
Thus, 1 kgf/cm2 is approximately 98.1 kPa.
Reference Data
| Pressure (kPa) | Pressure (kgf/cm2) | Common Usage / PN Rating |
|---|---|---|
| 98.07 | 1 | Base Technical Atmosphere |
| 392.27 | 4 | PN4 Flanges |
| 588.40 | 6 | PN6 Flanges |
| 980.67 | 10 | PN10 (Standard Water Pipe) |
| 1,569.06 | 16 | PN16 (High Pressure Water) |
| 2,451.66 | 25 | PN25 (Industrial Steam) |
| 3,922.66 | 40 | PN40 (Hydraulics) |
| 6,276.26 | 64 | PN64 |
| 9,806.65 | 100 | PN100 (Heavy Hydraulics) |