Temperature Converter

f to c Converter

Fahrenheit to Celsius converter

Convert Fahrenheit to Celsius instantly using the standard (°F − 32) × 5/9 formula. Key for understanding US weather readings in metric countries, converting American baking recipes to European oven settings, and reading health references across temperature scales.

Most needed when an American weather app shows 95°F on a trip abroad and you need to know if it is hot, when a US cookbook calls for 350°F and your oven shows Celsius, or when a medical guideline quotes a fever threshold in Fahrenheit that your thermometer displays in Celsius.

Also useful: convert Celsius to Fahrenheit, Celsius To Fahrenheit, Celsius To Kelvin.

Fahrenheit To Celsius Converter
Fahrenheit
-17.222222
Celsius

Calculation: C = (F - 32) × 5/9

Conversion Formula

C = (F - 32) × 5/9

Fahrenheit to Celsius is not a simple one-number conversion. The formula changes both the scale and the starting point, so the offset matters as much as the multiplier.

Use the full formula exactly as written to avoid errors, especially around freezing, boiling, or negative temperatures.

Reverse

F = (C × 9/5) + 32

For the reverse direction, apply the matching reverse formula instead of trying to divide the original equation.

How to Convert

  1. 1Start with the Fahrenheit valueEnter the amount you already have in F. Double-check the source unit first so you are converting the right number.
  2. 2Apply the Fahrenheit to Celsius formulaUse C = (F - 32) × 5/9 or let the converter calculate it instantly. This gives you the equivalent value in C.
  3. 3Round for your use caseUse more decimals for science, billing, or engineering. For everyday use, round only after the full conversion is done.
All Temperature tools

Fahrenheit → Celsius Table

Common reference values

Quick reference values for common Fahrenheit to Celsius conversions. Showing 10 of 13 values.
FahrenheitCelsius
Fahrenheit0
Celsius-17.777778 Celsius
Fahrenheit10
Celsius-12.222222 Celsius
Fahrenheit20
Celsius-6.666667 Celsius
Fahrenheit32
Celsius0 Celsius
Fahrenheit40
Celsius4.444444 Celsius
Fahrenheit50
Celsius10 Celsius
Fahrenheit68
Celsius20 Celsius
Fahrenheit77
Celsius25 Celsius
Fahrenheit86
Celsius30 Celsius
Fahrenheit98.6
Celsius37 Celsius

Frequently Asked Questions

QWhat is 32°F in Celsius?

32°F is exactly 0°C — the freezing point of water. Formula: (32 − 32) × 5/9 = 0°C.

QWhat is 98.6°F in Celsius?

98.6°F equals 37°C, the standard normal human body temperature. Formula: (98.6 − 32) × 5/9 = 66.6 × 5/9 = 37°C.

QWhat is 212°F in Celsius?

212°F is exactly 100°C — the boiling point of water at sea level. Formula: (212 − 32) × 5/9 = 180 × 5/9 = 100°C.

QWhat is 350°F in Celsius?

350°F equals approximately 176.7°C. Formula: (350 − 32) × 5/9 = 318 × 5/9 ≈ 176.7°C. This is a very common oven temperature for baking — often rounded to 175°C.

QWhat temperature is 104°F in Celsius?

104°F equals exactly 40°C. This is an important health reference point — a temperature above 40°C (104°F) is considered a high fever requiring immediate medical attention.

QHow do I convert Celsius back into Fahrenheit?

For the reverse direction, use the Celsius To Fahrenheit Converter page.

Understanding the units

What is F?

Fahrenheit is commonly used in the US for weather forecasts and household temperature settings.

What is C?

Celsius is the most common temperature scale worldwide for weather and everyday measurements.

Where this conversion shows up

Fahrenheit To Celsius Converter often comes up in daily weather and travel forecasts, oven and cooking temperature settings, and science, lab, and engineering references. It is most useful when the source value is published in one unit but the person reading it expects another.

If you are comparing nearby units, browse the full temperature converters collection for the closest match instead of doing extra manual steps.

A common next step is to compare this result with Celsius To Fahrenheit or switch direction with Celsius To Fahrenheit.

Real-world examples

Weather forecasts and travel

0 F -> -17.77777777777778 C

Essential when a weather app, travel guide, or climate report shows temperatures in a scale that is unfamiliar to you.

Cooking, baking, and food safety

10 F -> -12.222222222222221 C

Useful when a recipe calls for a specific oven temperature or safe cooking temperature in Fahrenheit or Celsius.

Science, engineering, and lab work

20 F -> -6.666666666666667 C

Important when equipment, research notes, or technical standards express temperature differently from your calculation tool.

Quick reference and common mistakes

Use the quick table for fast lookups and the formula when accuracy matters. Keep more decimals during intermediate steps, then round only for the final number you plan to show or report.

  • Applying a simple multiply-only factor to temperature conversions (offset is also required).
  • Rounding too early before finishing calculations.
  • Confusing absolute temperature (Kelvin) with relative scales (Celsius/Fahrenheit).

Why this conversion matters

Converting Fahrenheit to Celsius accurately prevents communication errors between teams, tools, and regions that use different standards. If you need the opposite direction, use the Celsius To Fahrenheit Converter.

If you are staying in the same workflow, continue with Celsius To Fahrenheit, Celsius To Kelvin, Fahrenheit To Kelvin.

Trust and editorial review

Written by

Convertaro Editorial Team

Reviewed by

Convertaro Review Process

Last updated

April 7, 2026

Fahrenheit To Celsius Converter is based on standard temperature definitions and the formula shown on the page.

We review the displayed formula, example values, and reverse conversion logic for consistency before publishing updates.

Last updated: April 7, 2026

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