❄️ [Translation temporarily unavailable. Please try again.]

[Translation temporarily unavailable. Please try again.] Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. [Translation temporarily unavailable. Please try again.] →

Endpoint

GET https://calculator.free/api/v1/btu/

curl

curl "https://calculator.free/api/v1/btu/?mode=cooling&units=sqft&area=300&climate=moderate"

JavaScript fetch()

const r = await fetch(
  "https://calculator.free/api/v1/btu/?" + new URLSearchParams({
    "mode": "cooling",
    "units": "sqft",
    "area": "300",
    "climate": "moderate"
  }));
const data = await r.json();
console.log(data.results);