Boiling Point at Altitude

Estimate water boiling temperature from elevation.

Altitude / Elevation

Est. Atmospheric Pressure: --

About Boiling Points

The boiling point of water decreases as you go higher in elevation because the atmospheric pressure decreases. At sea level, water boils at 100°C (212°F). On top of Mount Everest, it boils at roughly 68°C (154°F).

This calculator first estimates the air pressure using the specific altitude, then applies the Clausius-Clapeyron equation to find the boiling temperature.