Convert Technical Atmospheres to Kilobars
Convert Technical Atmospheres (at) to Kilobars (kbar) instantly and accurately.
Conversion Formula
kbar = at × 0.000980665
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 Kilobars
A kilobar (kbar) = 1,000 bar = 100 MPa = 10⁸ Pa - standard in high-pressure geophysics and experimental petrology. Earth mantle phase transitions: olivine → wadsleyite at ~130-140 kbar (410 km depth); post-spinel transition at ~230 kbar (660 km). Diamond anvil cells routinely reach 100-400 kbar for materials synthesis and equation-of-state measurement. High-pressure synthesis of cubic boron nitride (~50 kbar) and superhard materials uses large-volume presses. Explosive shock pressures for mining and demolition: 100-1,000 kbar. 1 kbar = 100 MPa.
Quick Reference Table
| Technical Atmospheres (at) | Kilobars (kbar) |
|---|---|
| 1 at | 0.000980665 kbar |
| 2 at | 0.00196133 kbar |
| 5 at | 0.00490333 kbar |
| 10 at | 0.00980665 kbar |
| 25 at | 0.0245166 kbar |
| 50 at | 0.0490332 kbar |
| 100 at | 0.0980665 kbar |