Boiling Point at Altitude
Estimate the boiling point of water at a given elevation using a simple approximation.
Examples
- 0 m ⇒ 100 °C
- 1,000 m ⇒ 96.7 °C
- 2,500 m ⇒ 91.7 °C
FAQ
Why does water boil at lower temperatures at high altitude?
Lower atmospheric pressure reduces the temperature needed for water to boil.
Can I enter altitude in feet?
Convert feet to meters first (1 ft ≈ 0.3048 m) before using the calculator.
How accurate is this formula?
It provides an approximation suitable for everyday use up to moderate altitudes.
Does humidity affect boiling point?
Humidity has minimal effect; pressure and altitude are the main factors.
Additional Information
- Water boils at 100°C at sea level under standard atmospheric pressure.
- Boiling point drops roughly 1°C for every 300 m increase in altitude.