Popular Weather & Atmosphere Tools workflows

Direct links to four high-demand tools in this category.

Heat Index Calculator Relative Humidity Calculator Sea Level Pressure Calculator Absolute Humidity Calculator

18 weather & atmosphere tools

Humidity & Weather Calculators

Connect relative humidity, dew point, wet bulb, vapor pressure and moisture content first, then move into heat, wind, rainfall and pressure tools when the physical job changes.

Choose the air property you actually measured

Use Psychrometric Calculator for a connected moist-air state. Focused pages remain useful when you only need one quantity or must preserve a specific input convention such as temperature + dew point or pressure-aware wet bulb.

Humidity state

Start with the psychrometric workspace or solve the specific humidity quantity you already know you need.

Psychrometric CalculatorSolve a browser-local moist-air state from dry bulb + RH, dry bulb + dew point, dew point + RH, or dry bulb + wet bulb, with pressure-aware outputs.Relative Humidity CalculatorEnter air temperature and dew point in °C or °F to calculate relative humidity, vapor pressure, absolute humidity, wet bulb and humidity ratio locally.Dew Point CalculatorEnter temperature and RH to estimate dew point, vapor pressure, absolute humidity, wet bulb and humidity ratio locally in your browser.Absolute Humidity CalculatorEstimate water-vapor density in g/m³, dew point, vapor pressure, humidity ratio and wet bulb while keeping the calculation basis explicit.

Wet bulb, vapor pressure & moisture ratio

Use pressure-aware tools when wet bulb, vapor-pressure deficit or water mass per mass of dry air matters.

Wet Bulb Temperature CalculatorCalculate wet bulb, dew point, vapor pressure, humidity ratio and enthalpy with pressure-aware inputs and explicit model limitations.Vapor Pressure CalculatorCompare vapor-pressure values alongside dew point, relative humidity, absolute humidity and humidity ratio without uploading data.Mixing Ratio CalculatorEstimate actual and saturated mixing ratio plus dew point, wet bulb, vapor pressure and enthalpy with a pressure-aware local calculation.Air Density CalculatorEstimate dry-air plus water-vapor density locally using ideal-gas component pressures.

Feels-like conditions

Estimate heat index, Humidex, wind chill or apparent temperature only within the stated model limits.

Heat Index CalculatorEstimate shade-based heat index locally with the NWS Steadman/Rothfusz method and see Celsius and Fahrenheit results.Humidex CalculatorEstimate Humidex locally from air temperature and relative humidity using the standard Canadian formula.Wind Chill CalculatorEstimate wind chill locally for the NWS validity range and compare the result in Fahrenheit and Celsius.Apparent Temperature CalculatorUse a Steadman-style apparent-temperature equation to combine temperature, vapor pressure, and wind.

Weather quantities

Convert rainfall, snow-water, wind and pressure observations without pretending to replace official forecasts or instruments.

Rainfall Volume CalculatorCalculate liters, cubic meters, US gallons, and cubic feet of rain from rainfall depth and collection area.Snow Water Equivalent CalculatorConvert snow depth to an approximate liquid-water depth without assuming one universal snow density.Beaufort Scale CalculatorEnter wind speed in common units to see Beaufort force, m/s, km/h, mph, and knots.Wind Power Density CalculatorUse one-half rho v cubed to estimate watts per square meter in the moving air stream.Sea Level Pressure CalculatorConvert between station and sea-level pressure with a simple isothermal barometric approximation.Sunrise Sunset CalculatorEnter latitude, longitude, date, and UTC offset or use your device location to calculate approximate solar times locally.

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