Fahrenheit to Celsius – Convert °F to °C Online Free
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Fahrenheit to Celsius Converter

Convert Fahrenheit to Celsius instantly online. Enter any temperature in °F and get the Celsius equivalent — useful for understanding US weather reports, American recipes, and any temperature from a country that uses the Fahrenheit scale.

Fahrenheit to Celsius Converter

Use this converter when you see a temperature in Fahrenheit and need to understand it on the Celsius scale — for interpreting US weather forecasts, American cooking instructions, or historical temperature data.

Quick Reference Table

About the Fahrenheit to Celsius Converter

Fahrenheit is used primarily in the United States, while Celsius is used everywhere else and in all scientific contexts. Converting Fahrenheit to Celsius requires subtracting 32 then multiplying by 5/9 — an unusual two-step formula unlike most unit conversions. This converter does that calculation instantly, and shows the full formula with your specific values in the result.

When to use this tool

Use this converter when you see a temperature in Fahrenheit and need to understand it on the Celsius scale — for interpreting US weather forecasts, American cooking instructions, or historical temperature data.

Common use cases

Understanding US weather Convert Fahrenheit temperatures from US weather apps or forecasts to Celsius for intuitive understanding.
Cooking from American recipes US recipes often specify oven temperatures in °F — convert to °C for ovens calibrated in Celsius.
Travel to the United States Understand outdoor temperatures in Fahrenheit when travelling in the US, where Celsius isn't commonly displayed.
Reading US thermostats and HVAC US thermostat settings in Fahrenheit often seem confusing — convert to Celsius to set a comfortable temperature.

How to use this converter

  1. Type your value into the field.
  2. The result appears instantly in the field as you type.
  3. Click Convert to confirm and see the full formula in the result card below.
  4. Use Use Result to chain conversions, or Clear to start fresh.

Tips for accurate conversions

  • The formula is °C = (°F − 32) × 5/9. Subtract 32 first, then multiply by 0.5556.
  • Key reference points: 32°F = 0°C (freezing), 72°F ≈ 22°C (comfortable room), 98.6°F = 37°C (body temp), 212°F = 100°C (boiling).
  • A quick mental shortcut: subtract 30 from °F and halve it for a rough Celsius estimate.

FAQs

°C = (°F − 32) × 5/9. Subtract 32 from the Fahrenheit value, then multiply by 5/9 (or 0.5556).

32°F (the freezing point of water) = 0°C.

212°F (the boiling point of water at sea level) = 100°C.

A typical comfortable indoor temperature is 68–72°F, which equals approximately 20–22°C.

98.6°F (normal human body temperature) = exactly 37°C.

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