105 LearnersLast updated on July 10th, 2025
Psi to Bar Conversion
Pressure can be measured using different units such as psi, bar, pascal, and atmosphere. Different units are used in various contexts. Psi (pounds per square inch) is a unit of pressure commonly used in the United States, often for measuring tire pressure or hydraulic systems. A bar is a metric unit of pressure used in many countries worldwide. Sometimes, we need to convert psi to bar to understand pressure measurements more easily. In this topic, we will learn how to convert psi to bar.
What is Psi?
Psi, or pounds per square inch, is a unit of pressure used primarily in the United States to quantify internal pressure in various systems. It represents the amount of force exerted over one square inch of area. Common uses for psi include measuring tire pressure and hydraulic systems. The symbol for pounds per square inch is psi.
What is Bar?
A bar is a metric unit of pressure that is widely used around the world, particularly in Europe. One bar is equal to 100,000 pascals. The bar is not part of the International System of Units (SI) but is still commonly used in industry and meteorology. The symbol for bar is simply bar.
Psi to Bar Formula
To convert psi to bar, we use the following formula: 1 bar = 14.5038 psi So, to convert from psi to bar, you divide the number of psi by 14.5038. Conversely, to convert from bar to psi, you multiply the number of bar by 14.5038.
How to Convert Psi to Bar?
Converting psi (pounds per square inch) to bar is straightforward using a standard conversion factor. Since 1 bar is equal to 14.5038 psi, we can convert psi to bar by dividing the number of psi by 14.5038. Steps to convert psi to bar: Write down the pressure in psi. Divide the value by 14.5038 to get the pressure in bar. Formula: Bar = psi ÷ 14.5038
Psi to Bar Conversion Chart
When measuring pressure, sometimes we use psi and sometimes we use bar. We use simple conversions to understand how much a pressure in psi is in bar. Below is a chart that shows us psi-to-bar conversions.
Common Mistakes and How to Avoid Them in Psi to Bar Conversion
When converting psi to bar, people often make mistakes. Here are some common mistakes to get a better understanding of the concepts of conversions.
Mistake 1
Using the wrong conversion factor
People get confused and use incorrect values for conversion, such as 15 instead of 14.5038.
Mistake 2
Rounding too soon
People might round numbers too early while calculating, which can lead to incorrect results. For example, instead of writing 100 ÷ 14.5038 = 6.89476, they might round it to 7, which is not accurate.
Mistake 3
Misplacing decimal points
People get confused and place the decimal point incorrectly, which leads to improper values. For example, instead of writing the value for 145 psi as 9.997 bar, they write it as 99.97 bar.
Mistake 4
Incorrect use of formula
People get confused and use the incorrect formula. For example, instead of dividing, they multiply. To convert any value from psi to bar, we divide psi by 14.5038, not multiply.
Mistake 5
Misunderstanding the relationship between psi and bar
People often get confused about the two units. Remember, 1 bar is approximately equal to 14.5038 psi.
Psi to Bar Conversion Examples
Problem 1
Convert 3,278 psi to Bar
3,278 psi = 225.951 bar
Explanation
We know the conversion factor: 1 psi = 0.0689476 bar Now, multiply 3,278 by the conversion factor: 3,278 × 0.0689476 = 225.951 bar.
Problem 2
Convert 46 psi to bar.
Solution: Converting 46 psi to bar gives us 3.172 bar.
Explanation
Use the conversion factor: 1 psi = 0.0689476 bar 46 × 0.0689476 = 3.172 bar
Problem 3
A tire's pressure is 120 psi. What is the pressure in bar?
The pressure of the tire in bar is 8.274 bar.
Explanation
Convert 120 psi to bar: 120 psi = 120 × 0.0689476 = 8.274 bar Pressure = 8.274 bar.
Problem 4
The hydraulic system operates at 180 psi. What is its pressure in bar?
The pressure in bar is 12.411 bar.
Explanation
Convert 180 psi to bar: 180 psi = 180 × 0.0689476 = 12.411 bar Pressure = 12.411 bar (approximately).
Problem 5
Converting 990 psi to Bar
990 psi = 68.257 bar
Explanation
Step 1: Use the conversion factor. 1 psi = 0.0689476 bar Step 2: Multiply 990 by 0.0689476. 990 × 0.0689476 = 68.257 bar
FAQs on Psi to Bar
1.How many bar is 1 psi?
2.What is 85 psi in bar?
3.Is 150 psi a high pressure?
4.How do I convert 100 psi to bar?
Important Glossaries for Psi to Bar
Conversion: The process of changing one unit of measurement into another. For example, converting psi to bar. Pressure: The force applied perpendicular to the surface of an object per unit area. Unit: A standard measurement of a quantity, such as psi or bar for pressure. Decimal: Numbers in which the whole number and fractional part are separated by a point (dot). For example, 6.5 where 6 and 5 are separated by a dot. Hydraulics: The branch of science and technology concerned with the conveyance of liquids through pipes and channels, often measured in psi or bar.
Seyed Ali Fathima S
About the Author
Seyed Ali Fathima S a math expert with nearly 5 years of experience as a math teacher. From an engineer to a math teacher, shows her passion for math and teaching. She is a calculator queen, who loves tables and she turns tables to puzzles and songs.
Fun Fact
: She has songs for each table which helps her to remember the tables
