Enter values to see results
—
Pa
—
kPa
Enter values to see results
—
Pa
—
kPa
The PSI to Pascals Converter converts pressure values from pounds per square inch (PSI) to Pascals (Pa), the SI base unit of pressure. The conversion factor is 1 PSI = 6,894.757 Pa. This tool is indispensable for engineers, scientists, and technicians who need to translate American pressure specifications into the internationally standardized metric system.
PSI, or pounds per square inch, is one of the most widely used pressure units in the United States and countries that follow American engineering standards. It is the standard for measuring tire pressure, air compressor ratings, hydraulic system pressures, blood pressure cuff calibrations (in some settings), and water system pressures. However, the international engineering and scientific community uses the Pascal, making PSI-to-Pascal conversion a daily necessity in global trade and research.
The relationship between PSI and Pascals arises from the fundamental definitions of each unit. A PSI is one pound of force distributed over one square inch of area. A Pascal is one Newton distributed over one square meter. Since 1 pound-force = 4.44822 Newtons and 1 square inch = 6.4516 × 10&sup4; m², we obtain the precise conversion factor.
Our converter provides output in both Pascals and kilopascals. Since many engineering specifications use kPa (such as automotive tire pressure ratings in metric countries, which typically read 200–250 kPa), having both values readily available eliminates an additional calculation step. The converter handles everything from fractional PSI values used in sensitive laboratory instruments to thousands of PSI used in high-pressure industrial applications.
The formula: Pascals = PSI × 6,894.757 (or equivalently, PSI ÷ 0.000145038). This factor is derived from: 1 lb-f = 4.44822 N, 1 in² = 0.00064516 m², so 1 PSI = 4.44822 / 0.00064516 ≈ 6,894.757 Pa.
For kilopascals: kPa = Pa / 1,000.
Common references: 14.696 PSI = 101,325 Pa (1 atm), 1 PSI = 6,894.757 Pa, 32 PSI ≈ 220,632 Pa (typical tire pressure), 3,000 PSI ≈ 20,684,271 Pa (scuba tank). Water pressure at 10 m depth adds about 14.2 PSI (97,900 Pa).
Inputs
Results
1 atm ≈ 14.696 PSI
Inputs
Results
Scuba tank pressure
1 PSI equals approximately 6,894.757 Pascals, or about 6.895 kPa.
Pascals = PSI × 6,894.757. You can also divide PSI by 0.000145038 for the same result.
14.7 PSI ≈ 101,353 Pa, which is very close to one standard atmosphere (101,325 Pa).
100 PSI = 689.476 kPa. This is about 6.89 bar.
PSI derives from the US customary system, which uses pounds and inches. The US never fully adopted the metric system, so PSI remains standard in American industry and daily life.
Divide PSI by 14.5038. For example, 100 PSI ÷ 14.5038 = 6.895 bar.
Residential water pressure is typically 40–60 PSI (276–414 kPa). Pressure above 80 PSI (552 kPa) may require a pressure reducer.
2,000 PSI = 13,789,515 Pa = 13,789.5 kPa = 13.79 MPa. This is common for hydraulic systems.
The conversion is based on the defined values of pound-force and inch. The commonly used factor (6,894.757) is accurate to 7 significant figures.
In the US, PSI is standard. In Europe and Asia, bar or kPa is used. Tire sidewalls often list both: e.g., 35 PSI / 240 kPa.
Roboculator Team
The Roboculator Team explains calculations, planning tools, and practical formulas in clear language for real-life situations.
How helpful was this calculator?
Be the first to rate!
Pressure Converter (General)
Basic Pressure Converters
Pascals to PSI Converter
Basic Pressure Converters
PSI to Bars Converter
Basic Pressure Converters
PSI to Atmospheres Converter
Basic Pressure Converters
Kilopascals to PSI Converter
Basic Pressure Converters
Megapascals to PSI Converter
Basic Pressure Converters
