Temperature Converter

Convert between Fahrenheit, Celsius, Kelvin, and Rankine

Temperature Converter

Conversion Direction*

Choose whether you're converting from Celsius or from Fahrenheit

Temperature*

Enter the temperature value to convert

How to Use

Select the conversion direction: 'Celsius → Fahrenheit' if you have a Celsius value, or 'Fahrenheit → Celsius' if you have a Fahrenheit value. Enter your temperature and click Calculate to see the result in all four temperature scales: Celsius, Fahrenheit, Kelvin, and Rankine.

Formula

°F = °C \times \frac{9}{5} + 32 \quad | \quad °C = (°F - 32) \times \frac{5}{9}

Examples

Boiling Point of Water

100°C = 212°F = 373.15 K = 671.67°R — the boiling point of water at standard pressure.

Room Temperature

72°F = 22.2222°C — a comfortable room temperature in the US.

Freezing Point of Water

0°C = 32°F = 273.15 K = 491.67°R — the freezing point of water.

Frequently Asked Questions

What is the formula for Fahrenheit to Celsius?▾

To convert Fahrenheit to Celsius: °C = (°F - 32) × 5/9. For example, 72°F = (72 - 32) × 5/9 = 22.22°C.

What is the formula for Celsius to Fahrenheit?▾

To convert Celsius to Fahrenheit: °F = °C × 9/5 + 32. For example, 100°C = 100 × 9/5 + 32 = 212°F.

At what temperature are Fahrenheit and Celsius equal?▾

Fahrenheit and Celsius are equal at -40 degrees. That is, -40°F = -40°C. This is the only point where the two scales intersect.

Temperature Converter

Convert between Fahrenheit, Celsius, Kelvin, and Rankine