Temperature

Fahrenheit to Celsius Converter

Convert Fahrenheit to Celsius for weather, cooking and science tasks.

PopularAPI Ready

Focused calculator

Calculate Fahrenheit to Celsius Converter

25 celsius Sample: 77 Fahrenheit

Formula

Formula: Celsius = (Fahrenheit - 32) x 5/9.

Example: 77 Fahrenheit = 25 Celsius.

The calculator keeps full precision internally and rounds only for display.

Common examples

InputResult
-40 Fahrenheit-40 Celsius
32 Fahrenheit0 Celsius
77 Fahrenheit25 Celsius

JSON API example

Use the public JSON endpoint with these query parameters.

  • value77
  • fromfahrenheit
  • tocelsius
GET https://api.convematik.com/convert?value=77.0&from=fahrenheit&to=celsius

{
  "value": 77.0,
  "from": "fahrenheit",
  "to": "celsius",
  "result": 25.0
}

Common questions

What does the Fahrenheit to Celsius Converter do?

It converts Fahrenheit to Celsius using Convematik's unit conversion engine.

What formula does it use?

Celsius = (Fahrenheit - 32) x 5/9.

Can I use decimal values?

Yes. Enter whole numbers or decimals and the calculator returns a decimal result.

Is this page free?

Yes. The converter runs as a free browser tool and can also be accessed through the API.