Pounds per square inch to Bar Converter
1 psi equals 0.068947573 bar, and 1 bar equals 14.503774 psi. Enter a value in either box to convert pounds per square inch to bar and back. Formula: pascals = value x unit factor (1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757293168 Pa, 1 mmHg = 133.322387415 Pa).
· CalcFlow Editorial
1 psi = 0.068947573 bar
Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.
Pounds per square inch to Bar Conversion Table
| Pounds per square inch | Bar |
|---|---|
| 1 psi | 0.068947573 bar |
| 5 psi | 0.34473786 bar |
| 10 psi | 0.68947573 bar |
| 14.7 psi | 1.0135293 bar |
| 30 psi | 2.0684272 bar |
| 32 psi | 2.2063223 bar |
| 100 psi | 6.8947573 bar |
| 1,000 psi | 68.947573 bar |
| 5,000 psi | 344.73786 bar |
Bar to Pounds per square inch Conversion Table
| Bar | Pounds per square inch |
|---|---|
| 1 bar | 14.503774 psi |
| 5 bar | 72.518869 psi |
| 10 bar | 145.03774 psi |
| 14.7 bar | 213.20547 psi |
| 30 bar | 435.11321 psi |
| 32 bar | 464.12076 psi |
| 100 bar | 1,450.3774 psi |
| 1,000 bar | 14,503.774 psi |
| 5,000 bar | 72,518.869 psi |
Worked example: 10 psi = 0.68947573 bar. A tire at 32 psi is 32 x 0.0689476 = 2.206 bar, which is 220.6 kPa. A blood pressure of 120 mmHg is 16.0 kPa.
Need other units? Open the full Pressure Converter.
Popular Pressure Conversions
Formula
pascals = value x unit factor (1 atm = 101,325 Pa, 1 bar = 100,000 Pa, 1 psi = 6,894.757293168 Pa, 1 mmHg = 133.322387415 Pa)Understanding Pressure Conversion
Pressure is force per area. The SI unit is the pascal, which is tiny, so kilopascals and bar are more common. Tire gauges in the US read pounds per square inch (psi) while much of the world uses bar or kPa. Weather reports use hectopascals or inches of mercury, and blood pressure is measured in millimeters of mercury. Standard atmospheric pressure is exactly 101,325 pascals.
Tips and Best Practices
- 1One bar is about 14.504 psi and 100 kPa.
- 2Standard atmosphere is 14.696 psi, 1.01325 bar or 760 mmHg.
- 3Check whether a gauge reads absolute pressure or gauge pressure (relative to the air around you).
Real-World Example
A tire at 32 psi is 32 x 0.0689476 = 2.206 bar, which is 220.6 kPa. A blood pressure of 120 mmHg is 16.0 kPa.
Common Mistakes to Avoid
- Confusing gauge and absolute pressure, which differ by about 14.7 psi at sea level.
- Mixing kPa and MPa, a factor of 1,000.
- Treating torr and mmHg as different; they agree to within a few parts per billion for practical use.
How to Use
- Type a number in the Pounds per square inch box.
- The Bar result appears instantly; you can also edit the Bar box to convert backwards.
- Use the swap button to reverse the direction and Copy result to copy the answer.
Frequently Asked Questions
How many bar are in 1 psi?
How many pounds per square inch are in 1 bar?
What is the formula to convert pounds per square inch to bar?
How many kPa is 1 atm?
Sources: NIST SP 811 (standard atmosphere, psi from lbf and in, conventional mmHg 13,595.1 kg/m3 x g_n); BIPM SI Brochure (bar).