🌍 Earth Science, Weather & Environment Calculators
Meteorology, geophysics, geography and renewable energy. Use these tools for weather analysis, field work, geology classes and energy planning.
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- Dew Point CalculatorDew point and frost point from air temperature and relative humidity (Magnus formula).
- Relative Humidity CalculatorRelative humidity from air temperature and dew point.
- Heat Index CalculatorApparent temperature from air temperature and humidity using the NOAA Rothfusz regression.
- Wind Chill CalculatorWind chill temperature from air temperature and wind speed (North American / UK formula).
- Barometric Altitude & Pressure CalculatorAltitude from air pressure (or pressure at an altitude) with the international standard atmosphere.
- Earthquake Magnitude & Energy CalculatorEnergy released by an earthquake from its moment magnitude, TNT equivalent and comparison between magnitudes.
- GPS Distance & Bearing CalculatorGreat-circle distance, initial bearing and midpoint between two latitude/longitude coordinates.
- Carbon-14 Dating CalculatorEstimate the age of organic material from the percentage of carbon-14 remaining.
- Wind Turbine Power CalculatorPower output and annual energy of a wind turbine from rotor diameter, wind speed and efficiency.
- Solar Panel Energy Output CalculatorDaily, monthly and yearly energy from a solar PV system based on panel power and peak sun hours.
- Fuel CO₂ Emissions CalculatorCarbon dioxide emissions from burning fuel, from a trip distance and consumption or a fuel amount.
- Rainwater Harvesting CalculatorVolume of rainwater collected from a roof area and rainfall depth.