kPa to PSI Converter

What is kPa (Kilopascal) and PSI (Pounds per Square Inch)?

Both kilopascals (kPa) and pounds per square inch (PSI) are widely used units for measuring pressure. However, they belong to different measurement systems and are preferred in different regions and industries:

• Kilopascal (kPa): This is a metric unit of pressure. It is a decimal multiple of the pascal (Pa), which is the standard SI unit of pressure defined as one newton per square meter ($1\text{ N/m}^2$). One kilopascal equals 1,000 pascals. It is commonly used in scientific contexts, meteorological reports, and in metric countries for tire pressure and industrial plumbing.
• Pounds per Square Inch (PSI): This is an imperial unit of pressure. It represents the pressure resulting from a force of one pound-force applied to an area of one square inch. PSI is widely used in the United States and the United Kingdom for automotive tire pressures, scuba tank pressures, air compressors, and industrial applications.

kPa to PSI Conversion Formula

To convert pressure between these two systems, use the following conversion factors:

• Convert kPa to PSI: Multiply the kPa value by $0.1450377377$.
  $$\text{Pressure in PSI} = \text{Pressure in kPa} \times 0.1450377377$$
• Convert PSI to kPa: Multiply the PSI value by $6.8947572932$.
  $$\text{Pressure in kPa} = \text{Pressure in PSI} \times 6.8947572932$$

Example Calculations

Example 1: Convert standard atmospheric pressure ($101.325\text{ kPa}$) to PSI: $$\text{PSI} = 101.325 \times 0.1450377377 \approx 14.6959\text{ PSI}$$

Example 2: Convert a standard car tire pressure ($32\text{ PSI}$) to kPa: $$\text{kPa} = 32 \times 6.8947572932 \approx 220.6322\text{ kPa}$$

Common Pressure Benchmarks

For other unit conversions, try the Pressure Converter, Temperature Converter, and Weight Converter.