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To convert from pound per square inch (psi) to megapascal (MPa), use the following formula:
With is the ratio between the base units kilopascal (kPa) and kilopound per square inch (ksi).
Let's convert 5 pound per square inch (psi) to megapascal (MPa).
Using the formula:
Therefore, 5 pound per square inch (psi) is equal to megapascal (MPa).
Here are some quick reference conversions from pound per square inch (psi) to megapascal (MPa):
| pounds per square inch | megapascals |
|---|---|
| 0.000001 psi | MPa |
| 0.001 psi | MPa |
| 0.1 psi | MPa |
| 1 psi | MPa |
| 2 psi | MPa |
| 3 psi | MPa |
| 4 psi | MPa |
| 5 psi | MPa |
| 6 psi | MPa |
| 7 psi | MPa |
| 8 psi | MPa |
| 9 psi | MPa |
| 10 psi | MPa |
| 20 psi | MPa |
| 30 psi | MPa |
| 40 psi | MPa |
| 50 psi | MPa |
| 100 psi | MPa |
| 1000 psi | MPa |
| 10000 psi | MPa |
For all Pressure converters, choose units using the From/To dropdowns above.
A pound per square inch (PSI) is a unit of pressure commonly used in the imperial system (which is standard in the United States).
It measures the amount of force applied over a single square inch of area.
PSI is a critical measurement for safety and performance in many common items, including:
Vehicle Tires: Proper tire pressure (PSI) ensures optimal handling, fuel efficiency, and tire life. You can find the recommended level on a sticker inside the driver's door.
Home Water Pressure: Affects everything from shower performance to how well appliances like dishwashers and washing machines function.
Sports Equipment: Items like footballs, basketballs, and soccer balls require a specific PSI to perform correctly and safely.
Tools: Air compressors, pressure washers, and paint sprayers all have specific PSI ratings for safe and effective operation.
While PSI is standard in the imperial system, scientific and international contexts use metric (SI) units like the Pascal (Pa) and the bar.
PSI to Pascal (Pa): The official SI unit for pressure.
1 PSI ≈ 6,894.76 Pascals (or 6.895 kilopascals, kPa).
PSI to Bar: A common unit in automotive and weather contexts. 1 bar is roughly equal to atmospheric pressure at sea level.
1 PSI ≈ 0.0689 bar.
The term "PSI" can be specified further to give more context:
PSIG (Pound-force per square inch gauge): Measures pressure relative to the surrounding atmospheric pressure. This is the most common measurement, used by a standard tire gauge.
PSIA (Pound-force per square inch absolute): Measures pressure relative to a perfect vacuum (absolute zero pressure).
The formula is: PSIA = PSIG + local atmospheric pressure.
PSID (Pound-force per square inch differential): Measures the difference in pressure between two separate points in a system, such as across a filter or valve.
If you've ever looked at engineering specifications, construction materials, or high-pressure equipment, you've likely seen the term 'MPa.'
A megapascal (MPa) is a unit of pressure in the metric system, equal to one thousand kilopascals (1000 kPa).
The plural form is megapascals.
The megapascal (MPa) is a fundamental unit for quantifying the strength of materials in engineering and construction.
It is commonly used to express a material's ultimate tensile strength (the maximum stress it can withstand while being pulled apart) and compressive strength (its resistance to being squeezed).
For example, structural steel might have a tensile strength of 400 MPa. In comparison, high-performance concrete can have a compressive strength exceeding 80 MPa.
Understanding how to convert megapascals to other pressure units is crucial for global applications.
Here are the most common conversions:
The pound per square inch (PSI) is a unit commonly used in the United States for measuring tire pressure and hydraulic systems.
The bar is a unit often used in Europe for weather forecasting and scuba diving.
Megapascals are used to describe immense pressures found in both natural and industrial settings.
The water pressure at the bottom of the Mariana Trench, the deepest point in the ocean, is about 108.6 MPa.
In industry, a high-pressure waterjet cutter operates at pressures ranging from 200 to 600 MPa, demonstrating enough force to slice through metal and stone.