Bar Converter
Convert Bar to Gigapascal and more • 57 conversions
0
Unit Explanations
Barbar
Source UnitThe bar is a metric unit of pressure, not part of the International System of Units (SI), but is commonly used in industry and meteorology. It is defined as exactly 100,000 pascals, which is slightly less than the average atmospheric pressure on Earth at sea level. One bar is equivalent to 0.987 atmospheres, 14.5038 pounds per square inch (psi), or 750.06 millimeters of mercury (mmHg). Although not an SI unit, it is accepted for use with the SI and is widely used due to its convenient size for many applications.
Current Use
The bar is widely used in various fields including meteorology for atmospheric pressure, and in industries such as automotive and aviation for tire pressure and cabin pressure monitoring. It is especially favored in contexts where moderate pressures need to be measured with a single-digit number, avoiding the unwieldy values that would result from using pascals.
Fun Fact
The bar is almost exactly the atmospheric pressure on Earth at sea level.
GigapascalGPa
Target UnitThe gigapascal (GPa) is a derived unit of pressure in the International System of Units (SI) equal to one billion pascals (Pa). It is commonly used to express high pressures in materials science, geophysics, and engineering applications. One pascal is defined as one newton per square meter, which establishes the gigapascal as a substantial unit for measuring stress, pressure, or tensile strength in various materials, particularly in structural and mechanical engineering.
Current Use
Today, the gigapascal is widely used in various industries, including civil engineering, aerospace, and automotive sectors, for measuring material strength and resilience under stress. It is also significant in geological studies, where subsurface pressures are crucial for oil and gas exploration. Countries with advanced manufacturing capabilities, such as the United States, Germany, and Japan, frequently utilize gigapascals in their engineering and research practices to ensure safety and efficiency in material applications.
Fun Fact
The gigapascal is often used in the context of testing materials for aerospace applications due to the extreme conditions they encounter.
All Pressure Conversions
105 convertersPopular Conversions
📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
Quick Examples
💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
Bar
pressure • Non-SI
Definition
The bar is a metric unit of pressure, not part of the International System of Units (SI), but is commonly used in industry and meteorology. It is defined as exactly 100,000 pascals, which is slightly less than the average atmospheric pressure on Earth at sea level. One bar is equivalent to 0.987 atmospheres, 14.5038 pounds per square inch (psi), or 750.06 millimeters of mercury (mmHg). Although not an SI unit, it is accepted for use with the SI and is widely used due to its convenient size for many applications.
History & Origin
The bar as a unit of pressure was introduced in the early 20th century. It was created to provide a convenient metric unit for expressing pressures without having to resort to using large numbers, as can occur with the pascal. The bar was defined in 1909 by the International Union of Pure and Applied Chemistry (IUPAC) to be equivalent to 100,000 pascals, simplifying conversion with the SI system.
Etymology: The word 'bar' comes from the Greek word 'baros', meaning weight.
Current Use
The bar is widely used in various fields including meteorology for atmospheric pressure, and in industries such as automotive and aviation for tire pressure and cabin pressure monitoring. It is especially favored in contexts where moderate pressures need to be measured with a single-digit number, avoiding the unwieldy values that would result from using pascals.
💡 Fun Facts
- •The bar is almost exactly the atmospheric pressure on Earth at sea level.
- •The unit 'bar' is not an SI unit, but it's accepted for use with SI due to its practicality.
- •The word 'barometer', an instrument for measuring atmospheric pressure, shares its root with the unit 'bar'.
📏 Real-World Examples
🔗 Related Units
Gigapascal
pressure • SI Unit
Definition
The gigapascal (GPa) is a derived unit of pressure in the International System of Units (SI) equal to one billion pascals (Pa). It is commonly used to express high pressures in materials science, geophysics, and engineering applications. One pascal is defined as one newton per square meter, which establishes the gigapascal as a substantial unit for measuring stress, pressure, or tensile strength in various materials, particularly in structural and mechanical engineering.
History & Origin
The concept of pressure measurement has roots in ancient practices, but the pascal was named after Blaise Pascal, a 17th-century French mathematician and physicist who contributed significantly to the understanding of fluid mechanics. The gigapascal, as a multiple of the pascal, emerged with the advancements in material science and engineering, particularly in the 20th century, as the need for measuring and quantifying high-pressure environments became essential in various industrial applications.
Etymology: The term 'gigapascal' combines the prefix 'giga-', which denotes a factor of one billion (10^9), with 'pascal,' named in honor of Blaise Pascal.
Current Use
Today, the gigapascal is widely used in various industries, including civil engineering, aerospace, and automotive sectors, for measuring material strength and resilience under stress. It is also significant in geological studies, where subsurface pressures are crucial for oil and gas exploration. Countries with advanced manufacturing capabilities, such as the United States, Germany, and Japan, frequently utilize gigapascals in their engineering and research practices to ensure safety and efficiency in material applications.
💡 Fun Facts
- •The gigapascal is often used in the context of testing materials for aerospace applications due to the extreme conditions they encounter.
- •One gigapascal is equivalent to about 145,038 psi (pounds per square inch), a common pressure unit in the United States.
- •The strength of some materials, like diamond, can be measured in tens of gigapascals, showcasing their remarkable resilience.
📏 Real-World Examples
🔗 Related Units
Related Pressure Conversions
Explore more pressure conversions for your calculations.
Frequently Asked Questions
How do I convert to ?▼
To convert to , multiply your value by 1. For example, 10 equals 10 .
What is the formula for to conversion?▼
The formula is: = × 1. This conversion factor is based on international standards.
Is this to converter accurate?▼
Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.
Can I convert back to ?▼
Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.