🔧 Pascal to PSI Converter
Instantly convert pressure from Pascals (Pa) to Pounds per Square Inch (PSI). 1 Pascal is exactly 0.000145038 PSI. Perfect for scientific, engineering, and industrial applications.
What Is a Pascal?
The Pascal (Pa) is the SI derived unit of pressure, stress, and tensile strength. It is defined as one newton per square meter (1 Pa = 1 N/m²). The pascal is named after the French mathematician and physicist Blaise Pascal (1623–1662).
Common multiples of the pascal include:
- Kilopascal (kPa) — 1,000 Pa, commonly used in meteorology and engineering.
- Megapascal (MPa) — 1,000,000 Pa, used for high-pressure applications.
- Hectopascal (hPa) — 100 Pa, used in weather reports (1 hPa = 1 mbar).
What Is PSI?
PSI (Pounds per Square Inch) is a unit of pressure based on avoirdupois units. It measures the amount of force (in pounds) applied to one square inch of area. PSI is commonly used in the United States and UK for:
- Tire pressure — vehicle tires are typically inflated to 30–35 PSI.
- Industrial applications — hydraulic systems, pneumatic tools, and pressure vessels.
- Water and fuel systems — pump pressure, fuel injection, and water supply.
How to Convert Pascal to PSI
The formula to convert Pascal to PSI is:
PSI = Pa × 0.000145038
or PSI = Pa ÷ 6894.76
For example, to convert 6,894.76 Pa (which is exactly 1 PSI) to PSI:
PSI = 6,894.76 × 0.000145038
PSI = 1.0000 PSI
To convert 101,325 Pa (standard atmospheric pressure) to PSI:
PSI = 101,325 × 0.000145038
PSI = 14.696 PSI
Why Use This Converter?
- Instant results: Get accurate Pascal to PSI conversions in real-time.
- Step-by-step breakdown: See exactly how the conversion is calculated.
- Common reference table: Quickly check pressure values from 1 Pa to 1 MPa.
- Free & private: No registration, no data storage — all calculations are done in your browser.
❓ Pascal to PSI FAQ
What is the formula to convert Pascal to PSI?
The formula is PSI = Pa × 0.000145038. Alternatively, you can use PSI = Pa ÷ 6894.76.
How many PSI is 1 Pascal?
1 Pascal is equal to 0.000145038 PSI.
How many Pascal is 1 PSI?
1 PSI is equal to 6,894.76 Pa.
What is the difference between Pascal and PSI?
Pascal (Pa) is the SI unit of pressure, used globally in science and engineering. PSI (Pounds per Square Inch) is an imperial unit commonly used in the United States and UK.
What is standard atmospheric pressure in Pascal and PSI?
Standard atmospheric pressure at sea level is 101,325 Pa or 14.696 PSI.
What is 1 kPa in PSI?
1 kPa (1,000 Pa) is equal to 0.145038 PSI.
What is 1 MPa in PSI?
1 MPa (1,000,000 Pa) is equal to 145.038 PSI.
How accurate is this converter?
This converter uses the exact conversion factor 0.000145038 for high accuracy. You can adjust the decimal precision to suit your needs.
Is this converter free?
Yes, this converter is completely free to use. No registration or personal data storage is required.
Where is Pascal commonly used?
Pascal is used globally in science, engineering, meteorology, and industrial applications. It is the standard unit of pressure in the International System of Units (SI).