Convert Inches of Mercury to Kilobars
Convert Inches of Mercury (inHg) to Kilobars (kbar) instantly and accurately.
Conversion Formula
kbar = inHg × 3.386388640e-5
About Inches of Mercury
One inch of mercury (inHg) ≈ 3,386 Pa - the primary barometric pressure unit in US aviation and meteorology. ASOS weather stations, METARs, and altimeter settings in the US report in inHg. Standard sea-level pressure is 29.92 inHg. Altimeters are set to local QNH in inHg to maintain altitude reference. US barometers for home weather stations display inHg. Typical pressure range: 28.5-31.0 inHg in continental weather systems. Record low: ~25.70 inHg (Typhoon Tip, 1979). 1 inHg = 3,386.39 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
| Inches of Mercury (inHg) | Kilobars (kbar) |
|---|---|
| 1 inHg | 3.386 × 10-5 kbar |
| 2 inHg | 6.773 × 10-5 kbar |
| 5 inHg | 0.000169319 kbar |
| 10 inHg | 0.000338639 kbar |
| 25 inHg | 0.000846597 kbar |
| 50 inHg | 0.00169319 kbar |
| 100 inHg | 0.00338639 kbar |