1 Bar to Pounds per square inch (1 bar to psi)
1 Bar equals 14.5038 Pounds per square inch. Below is the formula, the worked arithmetic, and what 1 bar typically represents in everyday use.
Formula and worked answer
Formula
psi = bar × 14.5038
Substituting 1 for bar: 1 × 14.5038 = 14.5038 psi. The factor 14.5038 comes from the exact international definition of the Bar relative to the Pound per square inch, so this answer is precise rather than rounded.
What does 1 Bar represent?
1 bar (14.50 psi) is approximately atmospheric pressure at sea level on Earth, the round figure metric meteorology uses as the reference unit for surface barometric readings, and the entry-level pressure in many European industrial pneumatic specifications. Converted to imperial the figure is 14.50 psi, which sits just below the standard atmosphere defined as 14.696 psi in US engineering literature. The 0.20 psi gap between "1 bar" and "1 atm" matters in scientific contexts: a European weather observation reading "1013 hPa" (1.013 bar) translates to 14.69 psi, while a casual "1 bar" approximation under-states atmospheric pressure by about 1.4%.
Values near 1 bar
- 2 bar=29.0076 psi
- 3 bar=43.5114 psi
- 4 bar=58.0152 psi
- 5 bar=72.519 psi
- 6 bar=87.0228 psi
bar to psi reference table around 1
| bar | psi |
|---|---|
| 1 bar | 14.5038 psi |
| 2 bar | 29.0076 psi |
| 6 bar | 87.0228 psi |
Convert a different value
Looking for a different number of Bar? Use the full bar to psi converter to enter any value, see the worked formula, and read the full background on the Bar and the Pound per square inch. To go the other direction, the psi to bar converter applies the inverse factor and is the page to bookmark if you usually start in Pounds per square inch.