Showing 1–20 of 1,000 ranked alternatives.
Copeland LP
Calculate refrigerant charges instantly
Calculate refrigerant charges for systems using built-in formulas. Input system parameters to determine correct levels for R-22, R-410A, R-32, and other refrigerants. Save and export calculation results for record-keeping.
Neave Interactive Limited
Track , view forecasts, explore maps
View satellite imagery updated in near real-time. Track hurricanes, storms, and severe . Monitor wildfires and smoke. Explore current and forecasts for rain, wind, temperature, and pressure. and interact with global maps.
雪平 王
Analyze with temperature, humidity, and pressure
Track current with temperature, humidity, and air pressure readings. Calculate dew point, wet bulb temperature, air density, vapor pressure, and enthalpy. Adjust indoor climate using comfort index calculations.
Wassim Murr
Calculate air properties and track moisture levels
Calculate air properties like temperature, humidity, and dew point. Determine enthalpy and moisture content. Convert between psychrometric units. Visualize air state diagrams. Export data for engineering analysis.
Kristian Ljungkvist
Calculate and track weather data
Calculate , altimeter setting, relative air , and relative humidity using GPS, weather data, and the phone's barometer. Track specific humidity in grains per pound. Suitable for pilots, engine tuning, and outdoor activities.
yoshihito sakagami
Calculate humidity properties instantly
Calculate humidity properties using dry-bulb, wet-bulb, and dew point temperatures. Input values to determine relative humidity, vapor pressure, and specific humidity. Display results in a interface with precise Wexler–Hyland formulation.
Optobyte AG
Calculate air density in real time
Calculates air density, relative humidity, and air pressure automatically. Displays geographic position, temperature, dewpoint, elevation, and barometric pressure. Supports airport and manual input modes.
Greenheck Fan Corporation
Calculate fan laws and size ducts
Fan Law Calculator allows users to input rpm, cfm, static pressure, and horsepower. Modifying one value recalculates the others. Ductulator helps size HVAC ducts by inputting shape, dimensions, air temperature, elevation, and roughness.
Unicom TOV
Check and forecast updates
Displays current with minimum and maximum temperatures. Shows 72-hour and 10-day forecasts for global cities. Automatically detects location. Includes animated satellite maps with wind, rain, temperature, and cloud layers.
Phan Nhat Đang
Calculate dew with temperature and humidity inputs
Calculate dew temperature using air temperature and relative humidity. Convert results to Kelvin, Celsius, or Fahrenheit. Input values manually for accurate calculations.
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