# Temperature Conversion Calculator

## Convert Temperatures

### Introduction

Welcome to our in-depth guide on temperature conversions! Whether you’re a student, a professional, or just someone curious about meteorology, cooking, or science, understanding how to convert temperatures between Fahrenheit, Celsius, and Kelvin is essential. In this guide, we’ll explore each temperature scale, provide easy conversion methods, and answer some frequently asked questions.

### Fahrenheit Conversions

Fahrenheit is a temperature scale primarily used in the United States. It was developed by Daniel Gabriel Fahrenheit in the early 18th century.

• Conversion to Celsius: To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit value and multiply by 5/9.
• Conversion to Kelvin: To convert Fahrenheit to Kelvin, subtract 32, multiply by 5/9, and then add 273.15.

Example Conversions:

• 32°F = 0°C
• 212°F = 100°C

## Fahrenheit Conversions

Fahrenheit to Celsius: $$[°C] = ([°F] – 32) \times \frac{5}{9}$$

Where F is the temperature in Fahrenheit and C is the temperature in Celsius.

Fahrenheit to Kelvin: $$[K] = ([°F] – 32) \times \frac{5}{9} + 273.15$$

Where F is the temperature in Fahrenheit and K is the temperature in Kelvin.

### Celsius Conversions

Celsius, also known as Centigrade, is a commonly used temperature scale around the world. It’s named after the astronomer Anders Celsius.

• Conversion to Fahrenheit: To convert Celsius to Fahrenheit, multiply the Celsius value by 9/5 and add 32.
• Conversion to Kelvin: To convert Celsius to Kelvin, simply add 273.15.

Example Conversions:

• 0°C = 32°F
• 100°C = 212°F

## Celsius Conversions

Fahrenheit to Celsius: $$[°C] = ([°F] – 32) \times \frac{5}{9}$$

Where F is the temperature in Fahrenheit and C is the temperature in Celsius.

Kelvin to Celsius: $$[°C] = [K] – 273.15$$

Where K is the temperature in Kelvin and C is the temperature in Celsius.

### Kelvin Conversions

Kelvin is the base unit of temperature in the International System of Units (SI). It’s primarily used in scientific contexts and was named after Lord Kelvin.

• Conversion to Fahrenheit: To convert Kelvin to Fahrenheit, subtract 273.15, multiply by 9/5, and then add 32.
• Conversion to Celsius: To convert Kelvin to Celsius, subtract 273.15.

Example Conversions:

• 273.15 K = 0°C
• 373.15 K = 100°C

## Kelvin Conversions

Fahrenheit to Kelvin: $$[K] = ([°F] – 32) \times \frac{5}{9} + 273.15$$

Where F is the temperature in Fahrenheit and K is the temperature in Kelvin.

Celsius to Kelvin: $$[K] = [°C] + 273.15$$

Where C is the temperature in Celsius and K is the temperature in Kelvin.

Why are there different temperature scales?

Different temperature scales were developed based on various reference points and historical contexts. Fahrenheit was based on a brine solution, Celsius on the freezing and boiling points of water, and Kelvin on absolute zero.

How do I quickly convert Fahrenheit to Celsius in my head

A rough estimation can be made by subtracting 30 from the Fahrenheit value and then halving it.

Is Kelvin used in daily life?

Kelvin is not typically used in daily life but is essential in scientific and engineering fields, especially in thermodynamics and physics.

Why does the U.S. use Fahrenheit while most of the world uses Celsius?

The U.S. continues to use Fahrenheit due to historical reasons and the cost and effort involved in changing to Celsius.