PSI to KSI Converter 2026 - Pounds per Square Inch to Kilopounds per Square Inch Calculator | Thiyagi

PSI to KSI Converter

Convert between pounds per square inch (psi) and kilopounds per square inch (ksi) for pressure and stress measurements in engineering applications

Standard pressure unit
High pressure/stress unit
Enter a value to see the conversion result

Pressure Reference

PSI ⇔ KSI
1,000 psi ⇔ 1 ksi
5,000 psi ⇔ 5 ksi
10,000 psi ⇔ 10 ksi
50,000 psi ⇔ 50 ksi
100,000 psi ⇔ 100 ksi
200,000 psi ⇔ 200 ksi

Engineering Applications

Material Strength:
• Aluminum: 10-70 ksi (10,000-70,000 psi)
• Steel: 36-200 ksi (36,000-200,000 psi)
• Concrete: 3-8 ksi (3,000-8,000 psi)
• Titanium: 130-200 ksi
System Pressures:
• Hydraulic systems: 1-10 ksi
• Pneumatic systems: 50-200 psi
• High-pressure vessels: 1-50 ksi
• Industrial processes: 100-5,000 psi
Testing Standards:
• Tensile testing: 10-300 ksi
• Pressure testing: 1-100 ksi
• Burst pressure: 5-200 ksi
• Safety factors: 2-10x working pressure

Pressure Units

  • psi: Pounds per square inch
  • ksi: Kilopounds per square inch
  • Conversion: 1 ksi = 1,000 psi
  • Also written: kips/in²

Usage Tips

  • psi for general pressures
  • ksi for high stress/strength
  • Check material specs
  • Consider safety margins

Applications

  • Structural: Material design
  • Mechanical: Stress analysis
  • Testing: Strength evaluation
  • Manufacturing: Quality control