PSI to Bar Converter
Pressure · unit-converter
Convert PSI to Bar with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations bridge through pascal with fixed definitions (standard atmosphere = 101,325 Pa; torr and mmHg = atm/760; plus industrial/manometer units like kgf/cm², inHg, inH2O, and mmH2O).
About PSI
Pounds-force per square inch (PSI) is common for tires, hydraulics, and US industrial equipment.
About Bar
The bar is 100,000 Pa. It is convenient for industrial and approximate atmospheric pressures (1 bar ≈ 1 atm).
How to convert psi to bar
1 psi equals 0.06894757293168 bar in this tool (via pascal):
1 psi = (6894.757293168 Pa ÷ 100000 Pa) bar = 0.06894757293168 bar
Each psi carries 6894.757293168 Pa and each bar 100000 Pa, so one psi equals 6894.757293168 ÷ 100000 bar.
Let p(psi) be pressure in PSI (psi), and p(bar) in Bar (bar). Then:
p(bar) = p(psi) × (6894.757293168 / 100000)
Equivalently, divide by how many psi fit into one bar (Pa per bar divided by Pa per psi):
p(bar) = p(psi) ÷ 14.503773773021683
Examples
Example #1: Convert 1 psi to bar
1 psi = 1 psi × (6894.757293168/100000) bar = 0.0689475729 bar
1 psi = 1 psi ÷ 14.503773773021683 = 0.0689475729 bar
1 psi × (6,894.757293168/100,000) = 0.068948 bar
Example #2: Convert 10 psi to bar
10 psi = 10 psi × (6894.757293168/100000) bar = 0.6894757293 bar
10 psi = 10 psi ÷ 14.503773773021683 = 0.6894757293 bar
10 psi × (6,894.757293168/100,000) = 0.689476 bar
Summary
To convert PSI to Bar, multiply the value in psi by (6894.757293168 Pa per psi) / (100000 Pa per bar). Equivalently: value_bar = value_psi × (6894.757293168 / 100000). Numerically, 1 psi equals 0.06894757293168 bar.
Relationship context
Both PSI and Bar are converted by fixed multiples of the pascal. Multiplying by (Pa per psi) ÷ (Pa per bar) gives the same result as passing through pascal, keeping bar, atm, PSI, kPa, hPa, torr, and mmHg consistent on the hub.
Conversion tables
| PSI (psi) | Bar (bar) |
|---|---|
| 0.1 | 0.0068947573 |
| 1 | 0.0689475729 |
| 2 | 0.1378951459 |
| 3 | 0.2068427188 |
| 4 | 0.2757902917 |
| 5 | 0.3447378647 |
| 6 | 0.4136854376 |
| 7 | 0.4826330105 |
| 8 | 0.5515805835 |
| 9 | 0.6205281564 |
| PSI (psi) | Bar (bar) |
|---|---|
| 10 | 0.6894757293 |
| 20 | 1.3789514586 |
| 30 | 2.0684271879 |
| 40 | 2.7579029173 |
| 50 | 3.4473786466 |
| 60 | 4.1368543759 |
| 70 | 4.8263301052 |
| 80 | 5.5158058345 |
| 90 | 6.2052815638 |
| 100 | 6.8947572932 |