Convert Kilopounds per Square Inch to Kilopascals
Convert Kilopounds per Square Inch (ksi) to Kilopascals (kPa) instantly and accurately.
Conversion Formula
kPa = ksi × 6894.757293
About Kilopounds per Square Inch
One ksi (kilopound per square inch) = 1,000 psi ≈ 6.895 MPa - the standard engineering stress unit in the US. ASTM A36 structural steel: 36 ksi yield, 58-80 ksi tensile. ASTM A325 high-strength bolts: 92 ksi proof load. AISC steel construction tables, FAA/MIL-SPEC aerospace allowables, and ASME Section VIII pressure vessel design all use ksi. Fracture toughness (K_IC) for steels: 50-200 ksi·√in. Convenient because it keeps large structural stresses as manageable 3-digit numbers. 1 ksi = 6.895 MPa.
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
| Kilopounds per Square Inch (ksi) | Kilopascals (kPa) |
|---|---|
| 1 ksi | 6894.76 kPa |
| 2 ksi | 13789.5 kPa |
| 5 ksi | 34473.8 kPa |
| 10 ksi | 68947.6 kPa |
| 25 ksi | 172369 kPa |
| 50 ksi | 344738 kPa |
| 100 ksi | 689476 kPa |