Force to Pressure Conversion: 1 Newton (N) per square inch = 0.145038 PSI | Essential for engineering, physics, and industrial applications
Accurate conversion between Newtons (force) and PSI (pounds per square inch, pressure) for engineering, physics, manufacturing, and industrial applications. Calculate with customizable precision and clear steps.
Conversion Factor
1 Newton per square inch (N/in²) = 0.145038 PSI | 1 PSI = 6.89476 N/in²
Precision: 2 Decimal Places | Formula: PSI = Newtons × 0.145038
Understanding the force (Newtons) and pressure (PSI) units for engineering, physics, and industrial applications.
Newton to PSI Conversion
1 N/in² = 0.145038 PSI
1 PSI = 6.89476 N/in²
PSI = Newtons (N/in²) × 0.145038
Newtons (N/in²) = PSI × 6.89476
Convert 10 Newtons per square inch to PSI:
PSI = N/in² × 0.145038
PSI = 10 × 0.145038
PSI = 1.45 (with 2 decimal places)
Convert 5 PSI to Newtons per square inch:
N/in² = PSI × 6.89476
N/in² = 5 × 6.89476
N/in² = 34.47 (with 2 decimal places)
Note: These conversions are standard for imperial and metric pressure/force measurements in engineering
The SI unit of force, defined as the force required to accelerate a mass of one kilogram at a rate of one meter per second squared (1 N = 1 kg·m/s²). When used with area (per square inch), it measures pressure.
Equivalents:
Note: Newton per square inch (N/in²) is a non-SI pressure unit commonly used in US industrial applications
Pounds per square inch (PSI) is an imperial and US customary unit of pressure, equal to the force of one pound-force applied to an area of one square inch. It's widely used in industrial and consumer applications.
Equivalents:
Note: PSI is the most common pressure unit for tires, hydraulics, and compressed air in the United States
| Newtons (N/in²) | PSI (lb/in²) | Pascals (Pa) | Bar | Atmosphere (atm) |
|---|---|---|---|---|
| 1 N/in² | 0.145 PSI | 155.0 Pa | 0.00155 bar | 0.00153 atm |
| 6.89476 N/in² | 1 PSI | 6894.76 Pa | 0.0689 bar | 0.0680 atm |
| 10 N/in² | 1.450 PSI | 1550.0 Pa | 0.0155 bar | 0.0153 atm |
| 50 N/in² | 7.252 PSI | 7750.0 Pa | 0.0775 bar | 0.0765 atm |
| 100 N/in² | 14.504 PSI | 15500.0 Pa | 0.1550 bar | 0.1530 atm |
| 204.816 N/in² | 29.7 PSI | 101325 Pa | 1.013 bar | 1 atm |
Common questions about Newtons, PSI, and force/pressure conversions.
1 Newton per square inch (N/in²) is equal to 0.145038 PSI (pounds per square inch). This is a standard conversion factor used in engineering and industrial applications. The relationship can be expressed in multiple ways:
1 N/in² = 0.145038 PSI
1 PSI = 6.89476 N/in²
PSI = Newtons (N/in²) × 0.145038
Newtons (N/in²) = PSI × 6.89476
This conversion is critical for translating metric force measurements to imperial pressure units commonly used in the United States and other countries.
The key difference lies in the physical quantity being measured (force vs. pressure) and their units:
In short: Pressure = Force / Area. This converter uses Newton per square inch (force per area) to convert directly to PSI (another force per area unit).
Newton to PSI conversion is widely used across various industries and fields where metric force measurements need to be translated to imperial pressure units:
This converter provides precise results that meet the accuracy requirements of professional and industrial applications.
Precision is critical in Newton to PSI conversions because small measurement errors can lead to significant issues in engineering and industrial applications:
This converter allows you to adjust precision from 0 to 4 decimal places, making it suitable for both high-precision professional use and everyday applications.
PSI, PSIA, and PSIG are related pressure units with key differences in their reference points:
PSIA = PSIG + 14.7 (standard atmospheric pressure)
PSIG = PSIA - 14.7
This converter uses standard PSI (PSIG, gauge pressure) unless otherwise specified
For most practical applications (tire pressure, hydraulics, plumbing), PSIG (gauge pressure) is the standard unit used, which is what this converter calculates.
Common force/pressure measurements for engineering, industrial, and automotive applications.
| Newtons (N/in²) | PSI (lb/in²) | Pascals (Pa) | Bar | Common Uses |
|---|---|---|---|---|
| 0.1 N/in² | 0.015 PSI | 15.5 Pa | 0.000155 bar | Low-pressure sensor readings |
| 1 N/in² | 0.145 PSI | 155.0 Pa | 0.00155 bar | Small component stress testing |
| 5 N/in² | 0.725 PSI | 775.0 Pa | 0.00775 bar | Residential water pressure (low) |
| 10 N/in² | 1.450 PSI | 1550.0 Pa | 0.0155 bar | Light-duty pneumatic tools |
| 6.89476 N/in² | 1 PSI | 6894.76 Pa | 0.0689 bar | Standard pressure reference |
| 20 N/in² | 2.901 PSI | 3100.0 Pa | 0.0310 bar | Bicycle tire pressure |
| 50 N/in² | 7.252 PSI | 7750.0 Pa | 0.0775 bar | Residential water pressure (normal) |
| 100 N/in² | 14.504 PSI | 15500.0 Pa | 0.1550 bar | Car tire pressure (standard) |
| 200 N/in² | 29.008 PSI | 31000.0 Pa | 0.3100 bar | Heavy-duty truck tire pressure |
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