Newton per Square Meter

N/m², also known as Newton per square meter, is a unit of measurement used to quantify pressure. It represents the force exerted on an area of one square meter. N/m² is an important unit in physics and engineering to understand the distribution of force over a surface.

Definition and Usage

N/m² is defined as one newton of force applied uniformly over an area of one square meter. It is used to measure pressure, stress, and load distribution in various applications, from fluid dynamics to material science.

Importance in Physics and Engineering

N/m² is a key unit in understanding and solving problems in various fields:

  • Pressure Measurement: N/m² is commonly used to quantify pressure in gases and liquids.
  • Stress Analysis: Engineers use N/m² to assess the stress on materials and structures.
  • Fluid Mechanics: N/m² helps in analyzing fluid flow and pressure distribution.

Conversions and Equivalents

Converting N/m² to other pressure units allows for better understanding:

  • 1 N/m² = 1 Pascal (Pa)
  • 1 N/m² = 0.00001 bar
  • 1 N/m² = 0.00750062 torr
  • 1 N/m² ≈ 0.00014503773773 psi

Practical Applications

N/m² is encountered in various real-world situations:

  • Tire Pressure: Car tire pressure is often measured in psi, which can be converted to N/m².
  • Atmospheric Pressure: N/m² is used to quantify the pressure exerted by the atmosphere.
  • Structural Analysis: Engineers assess the load distribution on buildings and bridges using N/m².


N/m², or Newton per square meter, is a fundamental unit for measuring pressure and stress. Its applications range from analyzing fluid dynamics to evaluating the strength of materials. Understanding N/m² is essential for accurately assessing force distribution and pressure in various contexts.

Keywords: N/m², Newton per square meter, pressure unit, stress analysis, fluid dynamics, conversion, engineering, physics