Boiling Point Calculator

Calculate at Different Pressures

Calculate boiling points for various substances at different atmospheric pressures using the Antoine equation.

Calculator

Selected: Water (H₂O)
Category: Common | Standard BP: 100°C at 1 atm

About Boiling Point

The boiling point is the temperature at which vapor pressure equals atmospheric pressure.

Key Points:
  • Varies with pressure
  • Substance-specific property
  • Higher altitude = lower BP
  • Used in distillation

Available Substances

Total: 20 substances
Categories:
  • Common liquids
  • Alcohols
  • Aromatics
  • Alkanes
  • Halogenated
  • Gases
  • Metals

Pressure Units

atm: Standard atmosphere
kPa: Kilopascal (SI unit)
mmHg: Millimeters of mercury
bar: 100 kPa

Features

  • 20+ substances
  • Antoine equation
  • Multiple pressure units
  • Temperature conversion
  • Copy results
  • Category filtering

Applications

Chemistry: Distillation processes

Engineering: Process design

Cooking: High-altitude adjustments

Industry: Separation techniques

Antoine Equation

Empirical relation between vapor pressure and temperature:

log₁₀(P) = A - B/(C + T)

Where A, B, C are substance-specific constants.