Convert PSI to Kilopascal
Convert PSI to kPa for tires, hydraulics, and compressors using the exact 6.89476 factor.
How to Convert Psi to Kilopascal
To convert PSI to Kilopascal, multiply psi by 6.89476.
Conversion Formula:
value * 6.89476Understanding the Conversion
PSI to Kilopascal is common when U.S. gauges report psi but international specs and SI calculations use kPa. Multiplying psi by 6.89476 gives kPa. This is vital for tire inflation guides, hydraulic equipment, and compressor ratings shared across regions.
Examples: 32 psi ≈ 220.6 kPa (typical car tire), 14.7 psi ≈ 101.3 kPa (atmosphere), 100 psi ≈ 689.5 kPa (higher-pressure systems). Converting to kPa keeps consistency with SI units and simplifies further conversion to Pa or bar.
Conversion Examples
Example: Convert 32 psi to kPa
- Step 1: 32 × 6.89476 ≈ 220.63.
- Step 2: Result ≈ 220.6 kPa.
- Step 3: Tire pressure example.
32 psi ≈ 220.6 kPa
Common tire pressure in kPa.
Example: Convert 14.7 psi to kPa
- Step 1: 14.7 × 6.89476 ≈ 101.35.
- Step 2: Result ≈ 101.35 kPa.
- Step 3: Atmospheric reference.
14.7 psi ≈ 101.35 kPa
Sea-level pressure.
Example: Convert 100 psi to kPa
- Step 1: 100 × 6.89476 = 689.476.
- Step 2: Result = 689.476 kPa.
- Step 3: High-pressure scenario.
100 psi = 689.476 kPa
Industrial range.
Conversion Formula
PSI to kPa multiplies by 6.89476, reflecting the conversion from pound-force per square inch to kilonewtons per square meter.
Conversion Chart
| Psi | Kilopascal |
|---|---|
| 5 | 34.47 |
| 10 | 68.95 |
| 14.7 | 101.35 |
| 32 | 220.63 |
| 50 | 344.74 |
| 75 | 517.11 |
| 100 | 689.48 |
| 125 | 861.85 |
| 150 | 1034.21 |
| 200 | 1378.95 |
Quick Conversion Tip
psi × 7 ≈ kPa for a quick mental estimate; use 6.89476 for exact.
Unit Definitions
Pound per Square Inch (psi)
Imperial pressure unit.
1 psi = 6.89476 kPa = 0.0689476 bar.
Kilopascal (kPa)
Metric pressure unit (1,000 Pa).
kPa to psi divide by 6.89476; kPa to bar divide by 100; kPa to mbar multiply by 10.
Common Use Cases
- Automotive: show tire pressures in kPa for international manuals.
- Hydraulics: convert psi gauges to kPa for SI modeling.
- Compressors: present psi readings in kPa on dashboards.
- HVAC/building: normalize low pressures to kPa.
- QA/safety: dual-label psi and kPa to prevent confusion.
Frequently Asked Questions
Do I lose precision converting to kPa?
No. The factor is fixed; results are precise and reversible.
Why kPa instead of psi?
kPa aligns with SI standards and many international manuals and regulators.
How do I go back?
Divide kPa by 6.89476 to return to psi.