Convert Kilobars to Inches of Water
Convert Kilobars (kbar) to Inches of Water (inH₂O) instantly and accurately.
Conversion Formula
inH₂O = kbar × 401463.076
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.
About Inches of Water
One inch of water column (inH₂O or in WC) = pressure from 1 inch of fresh water at standard gravity ≈ 249.09 Pa. The standard unit for low-pressure measurement in US HVAC and plumbing: ductwork static pressure, fan performance, filter ratings, and gas appliance manifold pressures are all specified in inches WC. Household natural gas supply pressure is typically 7 in WC (0.25 psi). Blower door tests for building air-tightness use 50 Pa ≈ 0.2 in WC test pressure. 1 inH₂O = 249.089 Pa.
Quick Reference Table
| Kilobars (kbar) | Inches of Water (inH₂O) |
|---|---|
| 1 kbar | 401463 inH₂O |
| 2 kbar | 802926 inH₂O |
| 5 kbar | 2007320 inH₂O |
| 10 kbar | 4014630 inH₂O |
| 25 kbar | 10036600 inH₂O |
| 50 kbar | 20073200 inH₂O |
| 100 kbar | 40146300 inH₂O |