How to use the boiling point of water at altitude calculator
Estimate water's boiling temperature at altitude. Enter altitude in the field above; the boiling point, boiling point are computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- h — Altitude (m)
Worked example
With altitude = 2500 m, the calculator gives boiling point ≈ 91.675 °C; boiling point ≈ 197.015 °F.
Frequently asked questions
What is the formula for the boiling point of water at altitude calculation?
Boiling point (°C) = 100-0.00333 × h. Boiling point (°F) = [Boiling point] × 9 / 5+32. Here h is altitude (m).
What inputs do I need for the boiling point of water at altitude calculator?
You need altitude in m. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.