PSI to Bar Conversion: Complete Guide + Reference Chart
To convert PSI to bar, divide the PSI value by 14.5038. For example, 1,000 PSI ÷ 14.5038 = 68.95 bar. To convert bar to PSI, multiply bar × 14.5038.
PSI to Bar Formula
The conversion between PSI and bar is a straightforward division or multiplication. PSI (pounds per square inch) is the U.S. standard while bar is widely used in European and international specifications. For a full explanation of PSI, see our guide: What Is PSI? Pressure Explained for Industrial & Hydraulic Systems.
Exact factor: 1 PSI = 0.0689476 bar | 1 bar = 14.5038 PSI
Example: 3,000 PSI ÷ 14.5038 = 206.8 bar | 250 bar × 14.5038 = 3,626 PSI
PSI to Bar Reference Chart
The following chart covers the pressure ranges most commonly encountered in industrial, hydraulic, and fluid power applications.
| PSI | Bar | Typical Application |
|---|---|---|
| 100 PSI | 6.89 bar | Light pneumatic systems, compressed air — shop air hose |
| 150 PSI | 10.34 bar | Standard shop air pressure |
| 200 PSI | 13.79 bar | Industrial pneumatic actuators |
| 300 PSI | 20.68 bar | Low-pressure hydraulic return lines |
| 500 PSI | 34.47 bar | Medium hydraulic circuits |
| 750 PSI | 51.71 bar | Moderate hydraulic systems |
| 1,000 PSI | 68.95 bar | Light hydraulic equipment |
| 1,500 PSI | 103.4 bar | Light mobile hydraulics |
| 2,000 PSI | 137.9 bar | Medium mobile hydraulics |
| 2,500 PSI | 172.4 bar | Medium-high hydraulic systems |
| 3,000 PSI | 206.8 bar | Standard mobile equipment hydraulics |
| 3,500 PSI | 241.3 bar | High-performance mobile hydraulics |
| 4,000 PSI | 275.8 bar | High-pressure mobile hydraulics |
| 4,500 PSI | 310.3 bar | High-pressure industrial systems |
| 5,000 PSI | 344.7 bar | Industrial high-pressure hydraulics |
| 6,000 PSI | 413.7 bar | Ultra-high-pressure specialty hose |
Conversions using 1 PSI = 0.0689476 bar. Source: NIST — SI Units and Conversion Factors.
Bar to PSI Reference Chart
When working with European or international equipment, hose ratings are often expressed in bar. Use this chart to convert bar values to PSI for U.S.-standard system design and component selection.
| Bar | PSI | Typical Application |
|---|---|---|
| 10 bar | 145 PSI | Light hydraulic / high pneumatic |
| 16 bar | 232 PSI | Low-pressure hydraulic return |
| 25 bar | 362.6 PSI | Medium hydraulic circuits |
| 40 bar | 580.2 PSI | Industrial hydraulic systems |
| 63 bar | 913.7 PSI | Medium-pressure hydraulics |
| 100 bar | 1,450 PSI | High-pressure hydraulic systems |
| 160 bar | 2,321 PSI | Standard mobile hydraulics (European) |
| 200 bar | 2,901 PSI | High-performance mobile hydraulics |
| 250 bar | 3,626 PSI | High-pressure industrial hydraulics |
| 315 bar | 4,569 PSI | Very high-pressure hydraulics |
| 350 bar | 5,076 PSI | Ultra-high-pressure systems |
| 420 bar | 6,091 PSI | Specialty high-pressure hose |
Conversions using 1 bar = 14.5038 PSI. Shop hydraulic, industrial, and pneumatic hose at ARG Industrial →
PSI vs. Bar Explained
Bar is a metric unit of pressure equal to 100,000 pascals (Pa) or 100 kilopascals (kPa). It approximates atmospheric pressure at sea level — 1 bar is approximately 0.987 atmospheres or 14.504 PSI. It is widely accepted across international engineering and industrial standards.
Key Differences: PSI vs. Bar
| Property | PSI | Bar |
|---|---|---|
| System | U.S. customary | Metric (non-SI) |
| Definition | 1 lb force per in² | 100,000 pascals |
| 1 unit equals | 0.0689 bar | 14.5038 PSI |
| Primary use | North America | Europe, international |
| Hose standard | SAE J517 | ISO 1436 / DIN 20022 |
| Gauge notation | PSIG / PSIA | barg / bara |
For a full explanation of gauge vs. absolute pressure, see our guide on BARG to PSI conversion.
How PSI and Bar Apply to Hydraulic Hose Ratings
Every piece of hydraulic hosecarries a working pressure (WP) rating expressed in both PSI and bar. When selecting hose for your system, the hose WP rating must meet or exceed the maximum operating pressure — regardless of which unit is used in your documentation.
Reading a Dual-Rated Hose Specification
A typical lay line on an SAE 100R2AT hose might read:
SAE 100R2AT = construction standard | -08 = ½ inch inner diameter
WP: 3,000 PSI / 207 bar = working pressure in both units (minor rounding is normal)
Both values refer to the same working pressure. A hose rated at 3,000 PSI and one rated at 207 bar are the same product.
Common Hydraulic Pressures in PSI and Bar
The following table provides a working reference for typical system pressures across common industrial and mobile equipment applications, expressed in both PSI and bar.
| Application | Typical PSI | Equivalent Bar | Recommended Hose |
|---|---|---|---|
| Pneumatic tools & actuators | 90–150 PSI | 6.2–10.3 bar | Pneumatic / air hose |
| Pressure washer (light-duty) | 1,000–2,000 PSI | 69–138 bar | Pressure washer hose |
| Pressure washer (industrial) | 2,000–4,000 PSI | 138–276 bar | High-pressure washer hose |
| Mobile hydraulics (loaders, excavators) | 1,500–3,000 PSI | 103–207 bar | SAE 100R2 hydraulic hose |
| Industrial hydraulics | 3,000–5,000 PSI | 207–345 bar | High-pressure hydraulic hose |
| Ultra-high-pressure systems | 5,000–10,000 PSI | 345–689 bar | Spiral-wound hydraulic hose |
| Offshore / oil & gas systems | 3,000–15,000 PSI | 207–1,034 bar | Specialty high-pressure hose |
Always verify actual system requirements with engineering documentation. Contact Team ARGfor assistance specifying hose assemblies for high-pressure applications.
Frequently Asked Questions
Divide the PSI value by 14.5038to get the equivalent in bar. Example: 3,000 PSI ÷ 14.5038 = 206.8 bar. For bar to PSI, multiply bar × 14.5038.
No. 1 bar equals 14.5038 PSI. Bar is a significantly larger unit of pressure than PSI. Conversely, 1 PSI equals 0.0689 bar.
3,000 PSI equals approximately 206.8 bar. This is the working pressure of standard SAE 100R2 hydraulic hoseused in most mobile equipment applications.
200 bar equals approximately 2,901 PSI(200 × 14.5038). This is a common pressure rating for medium to high-pressure European-spec hydraulic hose.
Hose manufacturers list both units because U.S. and international markets use different pressure standards. PSI is the North American standard while bar is common in Europe and on international equipment. Both values describe the same working pressure — minor differences due to rounding are normal and do not represent a specification discrepancy.
25 bar equals approximately 362.6 PSI(25 × 14.5038). This falls in the medium hydraulic pressure range.
Bar is a unit of pressure, while barg (bar gauge) specifies that the measurement is gauge pressure — taken relative to atmospheric pressure rather than absolute zero. For a full explanation, see our guide on BARG to PSI conversion.