Convert Bar to Attopascal (bar to Attopascal)
Bar (bar) and Attopascal (Attopascal) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert bar to attopascal. This free online calculator tool makes it simple and easy to perform the conversion from bar unit to the Attopascal unit.
Bar to Attopascal conversion
Bar to Attopascal Conversion Formula
One Bar is equal to 1e+23 Attopascal.
Formula: 1 bar = 1e+23 Attopascal
By using this conversion factor, you can easily convert any pressure measurement from bar unit to attopascal unit with precision.
How to Convert bar to Attopascal?
Converting from bar to Attopascal is a straightforward process. Follow these steps to ensure accurate conversions from bar to attopascal:
- Select the Bar Value: Start by determining the bar (bar) value you want to convert into attopascal (Attopascal). This is your starting point.
- Multiply by the Conversion Factor: To calculate bar to equivalent attopascal amount, multiply the selected bar value by 1e+23.
- Illustration of Multiplication:
- 1 bar = 1e+23 Attopascal
- 10 bar = 1e+24 Attopascal
- 100 bar = 1e+25 Attopascal
- Find the Conversion Result: The result of this multiplication is your converted value in attopascal unit. This represents the same pressure but in a different unit.
- Save Your Attopascal Value: After converting, remember to save the result. This value represents the pressure you initially measured, now expressed in attopascals.
- Alternative Method – Division: If you prefer not to multiply, you can achieve the same conversion by dividing the bar value by 1e-23. This alternative method also gives you the correct pressure in attopascals.
- Illustration of Division:
- Attopascal = bar ÷ 1e-23
What is Pressure?
Pressure is the force applied perpendicular to a surface per unit area: P = F / A. The SI unit is the pascal (Pa), equal to one newton per square metre (1 Pa = 1 N/m²). Practical applications use larger units: the bar (1 bar = 100,000 Pa, close to standard atmospheric pressure), atmosphere (atm) (1 atm = 101,325 Pa), and psi (pounds per square inch, used in the US for tire and gas pressures). Blood pressure is measured in mmHg (millimetres of mercury), also called torr.
What is Bar?
The bar (symbol: bar) is a non-SI unit of pressure equal to exactly 100,000 pascals. It is widely used in meteorology, hydraulic systems, industrial engineering, scuba diving, and tire pressure measurements. Although not an SI unit, the bar is accepted for use with the metric system and remains one of the world's most commonly used pressure units. More information is available in the bar (unit) article.
One bar is equal to 100,000 pascals, 100 kilopascals, 0.1 megapascal, 14.5038 pounds per square inch, and 0.986923 standard atmosphere. The bar provides a convenient pressure scale for engineering and industrial applications.
What is Attopascal?
The attopascal (symbol: aPa) is an SI-derived unit of pressure equal to one quintillionth (10-18) of a pascal. It is an extremely small pressure unit used mainly in theoretical physics, nanotechnology, and scientific research involving ultra-low pressure measurements. The attopascal uses the SI prefix atto, representing a factor of 10-18.
One attopascal is equal to 0.000000000000000001 pascal, 0.001 femtopascal, 0.000000001 nanopascal, 1×10-23 bar, and 9.86923×10-24 standard atmosphere. Although rarely used outside research, the attopascal is part of the complete SI pressure scale.
Some Bar to Attopascal conversions
- 0.1 Bar = 1e+22 Attopascal
- 0.2 Bar = 2e+22 Attopascal
- 0.3 Bar = 3e+22 Attopascal
- 0.4 Bar = 4e+22 Attopascal
- 0.5 Bar = 5e+22 Attopascal
- 0.6 Bar = 6e+22 Attopascal
- 0.7 Bar = 7e+22 Attopascal
- 0.8 Bar = 8e+22 Attopascal
- 0.9 Bar = 9e+22 Attopascal
- 1 Bar = 1e+23 Attopascal
- 2 Bar = 2e+23 Attopascal
- 3 Bar = 3e+23 Attopascal
- 4 Bar = 4e+23 Attopascal
- 5 Bar = 5e+23 Attopascal
- 6 Bar = 6e+23 Attopascal
- 7 Bar = 7e+23 Attopascal
- 8 Bar = 8e+23 Attopascal
- 9 Bar = 9e+23 Attopascal
- 10 Bar = 1e+24 Attopascal
- 20 Bar = 2e+24 Attopascal
- 30 Bar = 3e+24 Attopascal
- 40 Bar = 4e+24 Attopascal
- 50 Bar = 5e+24 Attopascal
- 60 Bar = 6e+24 Attopascal
- 70 Bar = 7e+24 Attopascal
- 80 Bar = 8e+24 Attopascal
- 90 Bar = 9e+24 Attopascal
- 100 Bar = 1e+25 Attopascal

Bar to Attopascal Examples
Example 1:
Convert 0.1 Bar pressure to Attopascal unit.
Solution:
We know that one Bar is equivalent to 1e+23 Attopascal.
Therefore,
0.1 bar = 0.1 x 1e+23 Attopascal.
0.1 bar = 1e+22 Attopascal.
Hence, 0.1 Bar is approximately equal to 1e+22 Attopascal.
Example 2:
Convert 7 Bar pressure to Attopascal unit.
Solution:
We know that one Bar is equivalent to 1e+23 Attopascal.
Therefore,
7 bar = 7 x 1e+23 Attopascal.
7 bar = 7e+23 Attopascal.
Hence, 7 Bar is approximately equal to 7e+23 Attopascal.
Frequently Asked Questions
How do you convert bar to Attopascal formula?
The main formula for the conversion of the bar value to Attopascal amount is to multiply the bar value by 1e+23.
There are 1e+23 Attopascal in 1 Bar.To convert from Bar to Attopascal, multiply your figure by 1e+23 (or divide by 1e-23).
What is the relation between Bar and Attopascal?
The relationship between Bar and Attopascal is given as follows: 1 bar = 1e+23 Attopascal
What is the value of 1 Bar in equivalent Attopascal?
1 Bar pressure is equivalent to 1e+23 Attopascal pressure.
What is the bar in attopascal?
1 bar equals 1e+23 attopascals.
What is the value of 15 Bar in Attopascals?
We know that 1 Bar is equal to 1e+23 Attopascal, multiply 15 by 1e+23 Attopascal. Therefore, 15 Bar = 15 x 1e+23 Attopascal, 15 bar = 1.5e+24 Attopascal. Hence, the value of 15 Bar in Attopascal is 1.5e+24 Attopascal.
What Pressure is 1 Attopascal?
The Pressure of 1 Attopascal spans 1e-23 Bar.
1 bar how much attopascal?
1 Bar (bar) corresponds to 1e+23 Attopascal (Attopascal).