Celsius to Fahrenheit Converter — Temperature Conversion Calculator

Celsius to Fahrenheit Converter

Convert temperatures between Celsius and Fahrenheit. Understand the relationship between these temperature scales with our easy-to-use converter.

Step 1: Temperature Input

°C
20°C

Understanding Celsius

The Celsius scale is used by most countries worldwide. Water freezes at 0°C and boils at 100°C at standard atmospheric pressure.

Step 2: Conversion Options

°F
68°F

About Fahrenheit

The Fahrenheit scale is primarily used in the United States. Water freezes at 32°F and boils at 212°F at standard atmospheric pressure.

Temperature Conversion Results

Summary
Temperature Comparison
Conversion Formula

Temperature Conversion

20°C = 68°F
Comfortable room temperature
Absolute Zero
-273.15°C
Water Freezing
0°C / 32°F
Human Body
37°C / 98.6°F
Water Boiling
100°C / 212°F

Temperature Scale Comparison

Description Celsius (°C) Fahrenheit (°F) Kelvin (K)

Temperature Conversion Formulas

Celsius to Fahrenheit

°F = (°C × 9/5) + 32

To convert Celsius to Fahrenheit, multiply by 9/5 and then add 32.

Fahrenheit to Celsius

°C = (°F – 32) × 5/9

To convert Fahrenheit to Celsius, subtract 32 and then multiply by 5/9.

Celsius to Kelvin

K = °C + 273.15

To convert Celsius to Kelvin, simply add 273.15.

Interesting Facts

Why -40° is the same in both scales

At -40°, the Celsius and Fahrenheit scales intersect. This happens because the conversion formulas are linear and the scales have different zero points and rate of change.

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