Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, and Rankine temperature scales with high precision. Perfect for scientific calculations, cooking, and weather comparisons.

4 Temperature Scales

Convert Temperature

From

Temperature Conversion Details

commonCelsius

Symbol: °C

Value: 20°C

Water freezes at 0°C and boils at 100°C

commonFahrenheit

Symbol: °F

Value: 68°F

Water freezes at 32°F and boils at 212°F

Scale Reference Points:

Celsius Scale

Freezing: 0°C

Boiling: 100°C

Fahrenheit Scale

Freezing: 32°F

Boiling: 212°F

From Temperature

20 °C

To Temperature

68 °F

Temperature Reference Points

Absolute Zero

-273.15°C=-459.67°F

Water Freezing Point

0°C=32°F

Human Body Temperature

37°C=98.6°F

Water Boiling Point

100°C=212°F

Room Temperature

20°C=68°F

Common Conversions

0°C=32°F

100°C=212°F

32°F=0°C

273.15K=0°C

Temperature Scales

Celsius°C

Water freezes at 0°C and boils at 100°C

Fahrenheit°F

Water freezes at 32°F and boils at 212°F

KelvinK

Absolute zero is 0K (-273.15°C)

Rankine°R

Absolute zero is 0°R (-459.67°F)

Professional Temperature Converter Tool

Convert between Celsius, Fahrenheit, Kelvin, and Rankine temperature scales with scientific precision. Essential for cooking, weather analysis, scientific research, and engineering calculations.

100% FreeScientific Accuracy4 Temperature Scales

About Our Temperature Converter

Our precision temperature converter handles all major temperature scales used worldwide. Whether you're converting Celsius to Fahrenheit for cooking recipes,Fahrenheit to Celsius for weather reports, or working withKelvin and Rankine for scientific calculations, our tool provides accurate results instantly.

Perfect for chefs, scientists, engineers, students, and weather enthusiasts. Our converter includes validation to prevent temperatures below absolute zero and provides reference points for common temperature benchmarks.

Temperature Scale Support

Common Scales

Celsius°C

Water freezes at 0°C, boils at 100°C

Fahrenheit°F

Water freezes at 32°F, boils at 212°F

Scientific Scales

KelvinK

Absolute zero is 0K (-273.15°C)

Rankine°R

Absolute zero is 0°R (-459.67°F)

Temperature Reference Points

Absolute Zero

-273.15°C=-459.67°F

Lowest possible temperature

Water Freezing

0°C=32°F

Standard atmospheric pressure

Room Temperature

20°C=68°F

Comfortable indoor temperature

Human Body

37°C=98.6°F

Normal body temperature

Water Boiling

100°C=212°F

Standard atmospheric pressure

How to Convert Temperature

Enter Temperature Value

Type the temperature you want to convert

Select Source Scale

Choose from Celsius, Fahrenheit, Kelvin, or Rankine

Choose Target Scale

Select the temperature scale to convert to

Get Precise Results

View converted temperature with scientific precision

Common Temperature Conversions

Freezing Point

0°C=32°F

Formula: °F = (°C × 9/5) + 32

Room Temperature

20°C=68°F

Formula: °C = (°F - 32) × 5/9

Body Temperature

37°C=98.6°F

Formula: K = °C + 273.15

Boiling Point

100°C=212°F

Formula: °R = °F + 459.67

Temperature Conversion Formulas

Celsius ↔ Fahrenheit

°F = (°C × 9/5) + 32

°C = (°F - 32) × 5/9

Celsius ↔ Kelvin

K = °C + 273.15

°C = K - 273.15

Fahrenheit ↔ Rankine

°R = °F + 459.67

°F = °R - 459.67

Frequently Asked Questions

What is the difference between Celsius and Fahrenheit?

Celsius uses water's freezing point (0°C) and boiling point (100°C) as reference points. Fahrenheit uses 32°F for water's freezing point and 212°F for boiling point. Celsius is used worldwide in science and most countries, while Fahrenheit is primarily used in the United States.

What are Kelvin and Rankine scales used for?

Kelvin and Rankine are absolute temperature scales starting from absolute zero. Kelvin is the standard scientific temperature unit, used in physics and chemistry. Rankine is similar to Kelvin but uses Fahrenheit-sized degrees. Both are essential for thermodynamics and scientific calculations.

How accurate is this temperature converter?

Our converter uses precise mathematical formulas with up to 6 decimal places of accuracy. It includes validation to prevent temperatures below absolute zero and provides scientifically accurate conversions for all supported temperature scales.

Can I convert negative temperatures?

Yes, you can convert negative temperatures. However, the converter will warn you if you enter a temperature below absolute zero (-273.15°C, -459.67°F, 0K, 0°R), as these temperatures are physically impossible.