Pressure Conversion: 1 PSI = 6894.76 N/m² | Essential for engineering, physics and industrial applications

PSI to Newton per Square Meter Converter

Accurate conversion between PSI (pounds per square inch) and Newton per Square Meter (Pascal) for engineering, physics, and industrial pressure measurements.

1 PSI = 6894.76 N/m² | Default: 2 decimal places

Conversion Factor

1 PSI = 6894.76 N/m² (Pa) | 1 N/m² = 0.000145038 PSI

PSI
N/m²

Precision: 2 Decimal Places | Formula: N/m² = PSI × 6894.76

Common Pressure Measurements

PSI and Newton per Square Meter

Understanding these essential pressure units for engineering, physics, and industrial applications.

The Conversion Formula

PSI to Newton per Square Meter Conversion

1 PSI = 6894.76 N/m² (Pascals)
1 N/m² = 0.000145038 PSI
N/m² = PSI × 6894.76
PSI = N/m² × 0.000145038

Example Calculation 1:

Convert 10 PSI to Newton per Square Meter:

N/m² = PSI × 6894.76

N/m² = 10 × 6894.76

N/m² = 68947.6 (with 1 decimal place)

Example Calculation 2:

Convert 100000 N/m² to PSI:

PSI = N/m² × 0.000145038

PSI = 100000 × 0.000145038

PSI = 14.5038 (with 4 decimal places)

Note: These conversions use the exact factor of 1 PSI = 6894.75729 N/m² (rounded to 6894.76 for practical use)

When to Use This Conversion:

  • Engineering and mechanical design calculations
  • Hydraulic and pneumatic system pressure measurements
  • Industrial pressure gauge readings and calibrations
  • Physics experiments and scientific measurements
  • HVAC (Heating, Ventilation, and Air Conditioning) systems
  • Automotive tire pressure and engine specifications
  • Water pressure measurements in plumbing systems
  • International standardization of pressure measurements

About the Units

PSI (Pounds per Square Inch)

A unit of pressure or stress based on avoirdupois units, commonly used in the United States and other countries using imperial measurements.

Equivalents:

  • 1 PSI = 6894.76 Pascals (N/m²)
  • 1 PSI = 0.06895 bar
  • 1 PSI = 0.006895 MPa
  • 1 PSI = 2.03602 inches of mercury
  • 14.6959 PSI = 1 atmosphere (atm)
  • 1 PSI = 51.7149 mmHg (millimeters of mercury)

Note: Widely used in US industrial and consumer applications

Newton per Square Meter (Pascal)

The SI unit of pressure, stress, Young's modulus, and tensile strength. One pascal is equal to one newton per square meter (1 N/m²).

Equivalents:

  • 1 N/m² = 1 Pascal (Pa)
  • 1 N/m² = 0.000145038 PSI
  • 100000 N/m² = 1 bar
  • 1000000 N/m² = 1 MPa (Megapascal)
  • 101325 N/m² = 1 standard atmosphere
  • 1 N/m² = 0.00750062 mmHg

Note: Global standard for scientific and engineering measurements

Common Pressure Measurement Equivalents:

PSI N/m² (Pa) Bar MPa Atmosphere
1 PSI 6894.76 Pa 0.06895 bar 0.006895 MPa 0.06805 atm
10 PSI 68947.6 Pa 0.6895 bar 0.06895 MPa 0.6805 atm
14.7 PSI 101325 Pa 1.01325 bar 0.101325 MPa 1 atm
50 PSI 344738 Pa 3.4474 bar 0.3447 MPa 3.402 atm
100 PSI 689476 Pa 6.8948 bar 0.6895 MPa 6.805 atm
0 PSI 0 Pa 0 bar 0 MPa 0 atm

Frequently Asked Questions

Common questions about PSI, Newton per Square Meter, and pressure measurements.

One PSI (pound per square inch) is equal to 6894.76 Newtons per square meter (Pascals). This conversion factor is derived from the definition of PSI and the SI unit system:

1 PSI = 6894.76 N/m² (Pa)

1 N/m² = 0.000145038 PSI

N/m² = PSI × 6894.76

PSI = N/m² × 0.000145038

The exact conversion factor is 6894.75729 N/m² per PSI, which is rounded to 6894.76 for practical engineering and industrial applications.

PSI and Pascals (N/m²) are both units of pressure but belong to different measurement systems:

PSI (Pounds per Square Inch)
  • Imperial/US customary unit
  • Common in United States and UK
  • Used in industrial, automotive, and consumer applications
  • Based on force (pounds) over area (square inches)
  • Larger unit (1 PSI = 6894.76 Pa)
  • Standard for tire pressure in North America
Pascal (Newton per Square Meter)
  • SI (metric) unit of pressure
  • Global scientific and engineering standard
  • Based on force (Newtons) over area (square meters)
  • Smaller unit (1 Pa = 0.000145038 PSI)
  • Kilopascals (kPa) and Megapascals (MPa) are more practical
  • 1 atmosphere = 101325 Pa

This converter provides accurate conversions between these two units for all pressure measurement needs.

These pressure units are used in different contexts and regions:

  • PSI Applications:
    • Automotive tire pressure (North America)
    • Hydraulic systems in manufacturing
    • Air compressor pressure ratings
    • Plumbing and water pressure (US)
    • Industrial equipment specifications (US)
    • HVAC system pressure measurements
  • N/m² (Pascal) Applications:
    • Scientific research and physics experiments
    • Engineering calculations (global standard)
    • Weather barometric pressure (hPa/mbar)
    • Industrial standards (ISO)
    • Medical pressure measurements
    • Aerospace and aviation engineering

International companies often need to convert between these units for global operations and compliance with different regional standards.

Precision in pressure conversions is critical for safety, performance, and compliance in many industries:

High Precision Required
  • Aerospace and aviation engineering
  • Medical equipment (blood pressure, gas delivery)
  • Industrial safety systems
  • Calibration of precision instruments
  • Research and scientific experiments
  • Oil and gas industry measurements
Moderate Precision Acceptable
  • Automotive tire pressure checks
  • General plumbing applications
  • Consumer air compressors
  • Basic HVAC system checks
  • Educational purposes
  • Estimation calculations

This converter defaults to 2 decimal places, which provides sufficient precision for most industrial and consumer applications. For critical engineering applications, you can adjust up to 4 decimal places for higher accuracy.

Understanding key reference points helps in practical pressure measurements:

  • Atmospheric pressure (sea level):
    • 14.6959 PSI
    • 101325 N/m² (101.325 kPa)
    • 1.01325 bar
  • Standard car tire pressure:
    • 30-35 PSI
    • 206843-241317 N/m²
  • Water pressure in residential plumbing:
    • 40-80 PSI
    • 275790-551581 N/m²
  • Standard atmospheric pressure (1 bar):
    • 14.5038 PSI
    • 100000 N/m² (100 kPa)
  • Vacuum (absolute zero pressure):
    • 0 PSI (absolute)
    • 0 N/m²

Note that pressure measurements can be gauge (relative to atmospheric) or absolute (relative to vacuum), which is important for accurate conversions in technical applications.

Conversion Table: PSI to Newton per Square Meter

Common pressure measurements for engineering, industrial, and consumer applications.

PSI N/m² (Pa) kPa Bar Common Uses
1 PSI 6894.76 Pa 6.895 kPa 0.069 bar Low-pressure applications
10 PSI 68947.6 Pa 68.948 kPa 0.689 bar Light industrial applications
14.7 PSI 101325 Pa 101.325 kPa 1.013 bar Standard atmospheric pressure
30 PSI 206843 Pa 206.843 kPa 2.068 bar Standard car tire pressure
50 PSI 344738 Pa 344.738 kPa 3.447 bar Plumbing/water pressure
100 PSI 689476 Pa 689.476 kPa 6.895 bar Industrial air compressors
150 PSI 1034214 Pa 1034.214 kPa 10.342 bar Hydraulic systems
200 PSI 1378952 Pa 1378.952 kPa 13.790 bar Heavy industrial applications
0.5 PSI 3447.38 Pa 3.447 kPa 0.034 bar Low-pressure gas systems

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