Boiling Point at Altitude

Calculate the boiling point of water at any altitude. Essential for cooking adjustments at high elevation.

⚡ 1 credit per call

Try it

Fill in the fields below and hit Send.

Why use this

Water boils at 100°C at sea level, but that drops with altitude. At 3000m it's ~89.8°C, and at Everest base camp (~5300m) it's around 82°C. LLMs won't give you reliable figures here — use this for accurate cooking adjustments or scientific calculations.

Input

Field	Type	Required	Description
`altitude_m`	number	✓	Altitude in metres (-500 to 10000)

Response

Field	Type	Description
`altitude_m`	number	Input altitude in metres
`boiling_point_c`	number	Boiling point in Celsius
`boiling_point_f`	number	Boiling point in Fahrenheit
`cooking_note`	string \| null	Cooking adjustment note when boiling point drops below 95°C

API Reference

Endpoint

POST https://api.lightningapi.tools/boiling-point

Required headers

Authorization: Bearer <apiKey>
Content-Type: application/json

Example request

{
  "altitude_m": 0
}

Example response

{
  "altitude_m": 0,
  "boiling_point_c": 100,
  "boiling_point_f": 212,
  "cooking_note": null
}