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Engineering Unit Converter

Metric & Imperial Conversions for Pipeline Operations

Engineering Unit Converter
Converts between SI and US customary units for pressure, temperature, flow rates, volume, mass, and energy. Conversion factors per API, GPSA, and ISO 80000 standards.

Conversion Category

psi
For temperature, negative values are allowed

From / To Units

Quick Reference

Pressure:
1 psi = 6.895 kPa
1 bar = 14.504 psi
1 atm = 14.696 psi

Temperature:
°C = (°F - 32) / 1.8
K = °C + 273.15

About This Calculator

Converts between SI (metric) and US customary (imperial) units commonly used in pipeline and midstream operations.

Supported Categories:

  • Pressure: psi, kPa, bar, MPa, atm
  • Temperature: °F, °C, K, °R
  • Gas Flow: MMscfd, scfm, Sm³/d, Sm³/h
  • Liquid Flow: bbl/d, gpm, m³/h, L/min
  • Volume: ft³, m³, bbl, gal, L
  • Mass: lb, kg, ton, tonne
  • Energy: Btu, kJ, MMBtu, therm, HP, kW

Standards:

Conversion factors per GPSA, API standards, and ISO 80000.