What-If Simulator

Meteorological comparison calculator: change the parameters (temperature, relative humidity, air pressure) and observe the effects on dew point, absolute humidity, specific humidity, and air density.

Parameters

Base Temperature: 15 °C

Relative Humidity: 60 %

Air Pressure: 1013.25 hPa

Temperature Change: +2 °C

RH Change: +0 pp

Pressure Change: +0 hPa

Results

Metric	Before	After	Δ

Note: Formulas are simplified for educational purposes (Tetens formula, ideal gas law, virtual temperature). Values are rounded to 3 significant figures.

Formulas Used:

Saturation vapor pressure: Tetens formula
Dew point: inverse of the Magnus formula
Absolute humidity: AH = 216.7 × e / T_K
Specific humidity: q = 0.622 × e / (p - 0.378 × e)
Air density: ρ = p / (R_d × T_v)

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