Convert Bar to PSI
Convert Bar to PSI (pounds per square inch) with the exact 14.5038 factor for compressors, hydraulics, and diving.
How to Convert Bar to Psi
To convert Bar to PSI, multiply bar by 14.5038.
Conversion Formula:
value * 14.5038Understanding the Conversion
Bar to PSI is essential when European/metric specs must be read on PSI gauges common in North America. Multiply bar by 14.5038 to get psi. For example, 2.5 bar ≈ 36.26 psi, and 1 bar ≈ 14.5 psi. This helps prevent misreads on compressors, hydraulic lines, and scuba equipment.
The conversion is reversible—divide psi by 14.5038 to return to bar.
Conversion Examples
Example: Convert 2.5 bar to psi
- Step 1: 2.5 × 14.5038 ≈ 36.26.
- Step 2: Result ≈ 36.3 psi.
- Step 3: Tire/compressor context.
2.5 bar ≈ 36.3 psi
Common tire/compressor pressure.
Example: Convert 1 bar to psi
- Step 1: 1 × 14.5038 = 14.5038.
- Step 2: Result ≈ 14.5 psi.
- Step 3: Quick reference.
1 bar ≈ 14.5 psi
Handy reference point.
Example: Convert 6 bar to psi
- Step 1: 6 × 14.5038 ≈ 87.02.
- Step 2: Result ≈ 87 psi.
- Step 3: Medium-high system range.
6 bar ≈ 87 psi
Industrial pressure example.
Conversion Formula
Bar to psi multiplies by 14.5038, the reciprocal of 0.0689476 psi per kPa with 100 kPa per bar.
Conversion Chart
| Bar | Psi |
|---|---|
| 0.5 | 7.25 |
| 0.75 | 10.88 |
| 1 | 14.5 |
| 2.5 | 36.3 |
| 3 | 43.5 |
| 5 | 72.5 |
| 6 | 87 |
| 8 | 116 |
| 10 | 145 |
| 12 | 174 |
Quick Conversion Tip
bar × 14.5 ≈ psi for a fast mental estimate.
Unit Definitions
Bar (bar)
Metric-adjacent pressure unit.
1 bar = 14.5038 psi = 100 kPa = 1,000 mbar.
Pound per Square Inch (psi)
Imperial pressure unit.
psi to bar multiply by 0.0689476; psi to kPa multiply by 6.89476.
Common Use Cases
- Compressors and air tools: present bar ratings in psi.
- Diving: convert bar gauge readings to psi where needed.
- Hydraulics: align bar specs with psi instruments.
- QA and safety: dual-label bar and psi to avoid errors.
- Education: show metric-to-Imperial scaling.
Frequently Asked Questions
Is 14.5038 exact?
It is the standard precise factor used for bar–psi conversions.
Why convert to psi?
North American gauges and manuals often require psi; converting avoids misreads.
How to go back?
Divide psi by 14.5038 to return to bar.