Convert Inches of Water to Terapascals
Convert Inches of Water (inH₂O) to Terapascals (TPa) instantly and accurately.
Conversion Formula
TPa = inH₂O × 2.490889100e-10
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.
About Terapascals
A terapascal (TPa) = 10¹² Pa = 10 Mbar - pressures in giant planet cores and at the frontier of high-energy-density physics. Jupiter's centre: ~40-70 TPa; Saturn's: ~10 TPa. Earth's inner core: ~0.35 TPa; core-mantle boundary: ~0.14 TPa. Laser-driven ramp and shock compression at NIF approaches TPa regimes for fusion implosion capsule research. Hydrogen is predicted to become a superconducting metal at ~0.5-5 TPa. Understanding TPa equations of state is critical for modelling exoplanet interiors. 1 TPa = 10¹² Pa.
Quick Reference Table
| Inches of Water (inH₂O) | Terapascals (TPa) |
|---|---|
| 1 inH₂O | 2.491 × 10-10 TPa |
| 2 inH₂O | 4.982 × 10-10 TPa |
| 5 inH₂O | 1.245 × 10-9 TPa |
| 10 inH₂O | 2.491 × 10-9 TPa |
| 25 inH₂O | 6.227 × 10-9 TPa |
| 50 inH₂O | 1.245 × 10-8 TPa |
| 100 inH₂O | 2.491 × 10-8 TPa |