Boiling Point at Altitude Calculator
Calculate the boiling point of water at any altitude.
See how elevation affects cooking and water boiling temperature.
Boiling Point
Water boils at a lower temperature at higher altitudes because atmospheric pressure decreases with elevation.
Approximate formula:
Boiling Point (°C) ≈ 100 − (Altitude in meters / 300)
More precise formula using atmospheric pressure:
Pressure (atm) ≈ (1 − 2.25577 × 10⁻⁵ × altitude)⁵·²⁵⁵⁸⁸
Then use the Clausius-Clapeyron equation to find the boiling point.
Reference points:
| Location | Altitude | Boiling Point |
|---|---|---|
| Sea level | 0 m / 0 ft | 100°C / 212°F |
| Denver, USA | 1,609 m / 5,280 ft | ~95°C / 203°F |
| Mexico City | 2,240 m / 7,350 ft | ~93°C / 200°F |
| Bogota, Colombia | 2,640 m / 8,660 ft | ~92°C / 197°F |
| La Paz, Bolivia | 3,640 m / 11,942 ft | ~87°C / 189°F |
| Mt. Everest base camp | 5,364 m / 17,598 ft | ~82°C / 180°F |
Cooking tip: At high altitudes, increase cooking times for boiled foods. Water boils faster but at a lower temperature, so food takes longer to cook.
Unit conversions:
- 1 meter = 3.281 feet
- 1 foot = 0.3048 meters