Convert Technical Atmospheres to Kilopascals
Convert Technical Atmospheres (at) to Kilopascals (kPa) instantly and accurately.
Conversion Formula
kPa = at × 98.0665
About Technical Atmospheres
One technical atmosphere (at) = exactly 1 kgf/cm² = 98,066.5 Pa ≈ 0.968 standard atmospheres. The metric technical pressure unit used in pre-SI European and Japanese engineering for boilers, hydraulic cylinders, and compressed gas systems. A steam boiler at 10 at operates at 0.981 MPa; hydraulic presses are rated at 200-600 at. Still used parenthetically in old German and Japanese machinery manuals and standards (DIN 1301-3 legacy). Converts simply from kgf/cm²: 1 at ≡ 1 kgf/cm². 1 at = 98,066.5 Pa.
About Kilopascals
A kilopascal (kPa) = 1,000 Pa - the practical everyday SI pressure unit for moderate pressures. Car tyre inflation: 200-250 kPa (29-36 psi); truck tyres 550-830 kPa. Blood pressure in SI countries: 16/10.7 kPa (= 120/80 mmHg). Systolic blood pressure 16 kPa. Carbonated beverages are packaged at 200-500 kPa CO₂. Medical oxygen cylinders at 15,000 kPa; scuba cylinders 200-300 bar = 20,000-30,000 kPa. 1 kPa = 1,000 Pa = 0.01 bar = 0.145 psi.
Quick Reference Table
| Technical Atmospheres (at) | Kilopascals (kPa) |
|---|---|
| 1 at | 98.0665 kPa |
| 2 at | 196.133 kPa |
| 5 at | 490.333 kPa |
| 10 at | 980.665 kPa |
| 25 at | 2451.66 kPa |
| 50 at | 4903.32 kPa |
| 100 at | 9806.65 kPa |