Fahrenheit to Celsius Converter

°F

Enter a temperature value in Fahrenheit

Conversion Result
Calculated
145°F = 62.78°C
Conversion Steps
1
°C = (°F – 32) ÷ 1.8
2
°C = (145 – 32) ÷ 1.8
3
°C = 113 ÷ 1.8
4
°C = 62.78

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Common Fahrenheit to Celsius Conversions

Fahrenheit (°F) Celsius (°C)

Fahrenheit to Celsius

Converting Fahrenheit to Celsius (°F to °C) is one of the most common temperature conversions used in science, weather forecasting, and everyday life. Understanding how to convert between these two temperature scales helps you interpret data from different countries or systems.

🔹 What is Fahrenheit to Celsius Conversion?

The Fahrenheit to Celsius conversion translates temperature readings from the Fahrenheit scale, commonly used in the United States, to the Celsius scale, used in most of the world.

To convert Fahrenheit to Celsius, we use this simple relationship:

°C = (°F – 32) ÷ (9/5)

Alternatively, since 9/5 = 1.8, the formula can also be written as:

°C = (°F – 32) ÷ 1.8

This means:

  • Subtract 32 from the Fahrenheit value.
  • Divide the result by 1.8 to get the equivalent Celsius temperature.

🔹 Fahrenheit to Celsius Formula (Plain Text)

C = (F – 32) / 1.8

Where:

  • C = temperature in degrees Celsius
  • F = temperature in degrees Fahrenheit

This formula shows that the Celsius temperature increases at a slower rate than Fahrenheit because the Fahrenheit scale has smaller degree intervals.

🔹 Step-by-Step Conversion Example

Let’s convert 75°F to Celsius using the formula:

C = (F – 32) / 1.8
C = (75 – 32) / 1.8
C = 43 / 1.8
C = 23.89°C

So, 75 degrees Fahrenheit equals 23.89 degrees Celsius.

This step-by-step method works for any Fahrenheit value. For instance, 100°F becomes 37.78°C — a common example used in meteorology to represent a very warm day.

🔹 Fahrenheit to Celsius Conversion Table

Fahrenheit (°F)Celsius (°C)
0°F-17.78°C
32°F0°C
50°F10°C
68°F20°C
75°F23.89°C
86°F30°C
100°F37.78°C
212°F100°C

This quick reference table helps you estimate temperature values without needing to calculate each time.

🔹 How to Convert Fahrenheit to Celsius Mentally

For quick mental conversions (approximate values):

  1. Subtract 30 from the Fahrenheit temperature.
  2. Divide the result by 2.

Example:
(75 – 30) / 2 = 22.5°C (close to the exact 23.89°C).

This trick is handy for travelers comparing weather forecasts between Fahrenheit and Celsius countries.

🔹 Understanding Celsius and Fahrenheit Scales

Celsius (°C)
The Celsius scale is based on the freezing point of water at 0°C and boiling point at 100°C under standard atmospheric pressure. It’s part of the metric system, widely used in science and most nations worldwide.

Fahrenheit (°F)
The Fahrenheit scale, developed by Daniel Gabriel Fahrenheit, sets 32°F as the freezing point and 212°F as the boiling point of water. It’s still used mainly in the United States for daily weather and temperature readings.

The difference in these scales lies in how they divide the temperature range — 180 Fahrenheit degrees vs 100 Celsius degrees between water’s freezing and boiling points.

🔹 Why Learn the °F to °C Conversion?

Understanding Fahrenheit to Celsius conversions is essential for:

  • Scientific experiments and data analysis
  • Cooking and baking with recipes from other regions
  • Traveling internationally and interpreting weather reports
  • Engineering and industrial measurements

For scientists and students, Celsius is the global standard. However, knowing both scales helps interpret temperature across different contexts.

🔹 Common Conversion Examples

Fahrenheit (°F)Celsius (°C)Everyday Example
32°F0°CFreezing point of water
68°F20°CComfortable room temperature
98.6°F37°CAverage human body temperature
212°F100°CBoiling point of water

These benchmarks help you visualize how the two scales compare in daily life.

🔹 Related Conversion Tools

You can explore more unit conversion calculators to make other temperature and measurement conversions simple and accurate:

🔹 Quick Reference Formula Summary

To summarize:

  • Celsius to Fahrenheit: F = (C × 9/5) + 32
  • Fahrenheit to Celsius: C = (F – 32) / 1.8

Both formulas allow seamless conversion between the two major temperature systems.

Converting Fahrenheit to Celsius is simple once you remember the key formula:

C = (F – 32) / 1.8

Understanding this relationship bridges the gap between two measurement systems used worldwide. Whether you’re comparing climates, performing scientific experiments, or cooking from an international recipe, mastering this conversion keeps your numbers accurate and meaningful.

Temperature conversion isn’t just math — it’s a small but vital link connecting global standards of measurement and communication.