1 bar = 14.503773773 psi
1 psi = 0.0689475729 bar
What is a Bar?
A bar is a unit of pressure defined as exactly 100,000 pascals. It is close to the atmospheric pressure at sea level and equals 0.987 atmospheres.
Origin:
The bar was introduced by Vilhelm Bjerknes, a Norwegian meteorologist and pioneer of modern weather forecasting. The word bar comes from the Greek word baros, which means weight.
Current Use:
Although the bar is a met...
1 bar = 14.503773773 psi
1 psi = 0.0689475729 bar
What is a Bar?
A bar is a unit of pressure defined as exactly 100,000 pascals. It is close to the atmospheric pressure at sea level and equals 0.987 atmospheres.
Origin:
The bar was introduced by Vilhelm Bjerknes, a Norwegian meteorologist and pioneer of modern weather forecasting. The word bar comes from the Greek word baros, which means weight.
Current Use:
Although the bar is a metric unit, it is not officially part of the International System of Units (SI). One millibar is often used in meteorology because atmospheric pressure at sea level is about 1013.25 millibars (101.325 kPa).
What is Psi?
Psi stands for pound-force per square inch, a unit of pressure used in the imperial and US customary systems. It represents the pressure when one pound-force is applied to an area of one square inch.
Origin:
Pounds per square inch originated in England around the 1300s and were standardized in 1959. It comes from the avoirdupois system, historically used in the wool trade.
Current Use:
Psi is widely used in everyday applications such as:
• Tire pressure
• Scuba tanks
• Natural gas pipelines
Although pascals (Pa) are used in scientific contexts, psi is more common in countries like the United States.
Bar to Psi Conversion Formula
• 1 bar = 14.503773773 psi
• 1 psi = 0.0689475729 bar
Example: Convert 15 bar to psi: 15 bar×14.503773773=217.5566 psi
Bar to Psi Conversion Table
• 0.01 bar = 0.145 psi
• 0.1 bar = 1.450 psi
• 1 bar = 14.504 psi
• 2 bar = 29.008 psi
• 3 bar = 43.511 psi
• 5 bar = 72.519 psi
• 10 bar = 145.038 psi
• 20 bar = 290.075 psi
• 50 bar = 725.189 psi
• 100 bar = 1450.377 psi
• 1000 bar = 14503.774 psi
