HVAC Calculators

Manual J HVAC Load Calculator Estimate heating and cooling loads for residential buildings. Follows ACCA Manual J standards. Building Information Total Square Footage (ft²) Average Ceiling Height (ft) Climate Zone 1 – Very Hot2 – Hot3 – Warm4 – Mixed5 – Cool6 – Cold7 – Very Cold Construction Details Wall … Read more

Superheat Calculator Measure your HVAC system’s superheat accurately. Prevent compressor damage and improve cooling efficiency. Suction Pressure (psig) Suction Line Temperature (°F) Refrigerant Type R-22R-134aR-404AR-410AR-407C Calculate Superheat Reset Values Superheat Calculation Results Saturation Temperature: — °F Actual Temperature: — °F Superheat: — °F Understanding Your Results Good superheat range: 8-12°F … Read more

Temperature Difference Calculator Calculate the temperature difference between two measurements in Celsius, Fahrenheit, or Kelvin. Temperature 1: °C°FK Temperature 2: °C°FK Display result in: Same as input°C°FK Absolute value: Yes (always positive)No (show direction) Calculate Difference Temperature Difference Results: Difference: – Temperature 1 in all units: – Temperature 2 in … Read more

Heat Transfer Calculator Calculate heat transfer rates for conduction, convection, and radiation in various materials and conditions. Conduction Convection Radiation Conduction Calculator Material: AirWaterStyrofoamWood (pine)GlassSteel (mild)CopperCustom Custom Thermal Conductivity (W/m·K): Cross-sectional Area (m²): Thickness (m): Temperature Difference (ΔT in °C): Calculate Conduction Results: Heat Transfer Rate: 0 W Thermal Resistance: … Read more

Wet Bulb Calculator Calculate the wet bulb temperature based on air temperature and relative humidity. Air Temperature (°C): Relative Humidity (%): Atmospheric Pressure (hPa): Calculate Wet Bulb Results: Wet Bulb Temperature: – °C Dew Point: – °C Heat Index: – °C About Wet Bulb Temperature Wet bulb temperature is the … Read more

Dew Point Calculator Calculate the dew point temperature based on current temperature and relative humidity. This tool helps meteorologists, HVAC professionals, and homeowners determine when condensation will form. Temperature: °C°F Relative Humidity: % Dew Point Temperature: °C°F Calculate Dew Point Reset How to Use This Dew Point Calculator Enter the … Read more

Relative Humidity Calculator Calculate relative humidity based on temperature and dew point. This tool helps meteorologists, HVAC professionals, and weather enthusiasts determine atmospheric moisture levels. Temperature: °C°F Dew Point: °C°F Relative Humidity: % Calculate Humidity Reset How to Use This Humidity Calculator Enter the current air temperature Enter the dew … Read more

EER Calculator EER Calculator Cooling Output (BTUs): Power Input (Watts): Calculate EER EER Calculator (Energy Efficiency Ratio) EER Calculator (Energy Efficiency Ratio) – Measures cooling efficiency. Energy efficiency is a growing concern worldwide. One way to evaluate energy efficiency in cooling systems is by calculating the Energy Efficiency Ratio (EER). … Read more

SEER Calculator SEER Calculator Total Cooling Output (BTUs): Total Energy Input (Watt-Hours): Calculate SEER SEER Calculator (Seasonal Energy Efficiency Ratio) SEER Calculator (Seasonal Energy Efficiency Ratio) – Calculates HVAC system efficiency. In today’s world, energy efficiency is crucial for reducing utility costs and conserving the environment. A SEER (Seasonal Energy … Read more

Pressure-Temperature Chart Calculator Pressure-Temperature Calculator Select Refrigerant: R-134aR-410aR-22 Select Input Type: Pressure (psi)Temperature (°C) Enter Value: Calculate Pressure-Temperature Chart Calculator: Understanding and Applications Pressure-Temperature Chart Calculator – Finds refrigerant pressure-temperature values. A pressure-temperature chart calculator is a valuable tool for industries and professionals working with refrigerants, HVAC systems, and various … Read more