Engineering Tools & References in One Place
Designed for engineers, students, and professionals to perform calculations, access thermodynamic properties, convert units, and explore trusted engineering references.
12+
Engineering Tools
HVAC, Steam Tables, Converters & Calculators
ASHRAE
Based References
Industry standards and engineering formulas
Steam & Water
Database
Thermodynamic property lookup and interpolation
Metric & Imperial
Support
Unit conversion for international standards
Quick References
All Tools
Explore all engineering tools and calculators
Cooling Load Calculator
Estimate building cooling loads using CLTD and ASHRAE methodologies.
Psychrometric Calculator
Calculate moist air properties and psychrometric processes.
Pressure Converter
Convert between Pa, kPa, psi, atm, bar and other pressure units.
Temperature Converter
Convert between °C, °F, K, and °R temperature scales with precision.
Flow Rate Converter
Convert flow rate units including m³/s, L/s, CFM, GPM and more.
Energy Converter
Convert energy units such as J, kJ, kWh, BTU, kcal and MJ instantly.
Power Converter
Convert power units including W, kW, HP, BTU/h and more.
Length Converter
Convert length and distance units from mm to km, inches, feet and miles.
Mass Converter
Convert between kg, g, lb, oz, tonne and other mass units accurately.
Steam Tables
Thermodynamic properties of saturated and superheated steam.
Air Properties
Air property data for heat transfer and HVAC calculations.
Water Properties
Thermophysical properties of liquid water.
Refrigerant Properties
Thermodynamic properties of common refrigerants.
Duct Sizing
Size air ducts using equal friction and velocity design methods.
Pipe Sizing
Determine chilled and condenser water pipe dimensions and flow characteristics.
Chiller Performance
Evaluate chiller efficiency, energy consumption, and operating costs.
MechToolkit
Engineering Tools for HVAC & Thermodynamics
Data Sources:
ASHRAE Handbook · NIST · Çengel & Boles