Temperature Converter

Convert Temperature

Answer:

About Temperature Conversion

Temperature conversion is the process of changing a temperature from one scale to another. The most common temperature scales are Celsius (°C), Fahrenheit (°F), Kelvin (K), Rankine (°R), and Réaumur (°Ré).

Common temperature points:
• Water freezes: 0°C = 32°F = 273.15K = 491.67°R = 0°Ré
• Water boils: 100°C = 212°F = 373.15K = 671.67°R = 80°Ré
• Room temperature: ~20-25°C = ~68-77°F
• Body temperature: ~37°C = ~98.6°F

Formulas for Converting Temperature

Use these temperature conversion formulas to convert from one temperature scale to another.

Celsius Conversion Formula

Celsius to Fahrenheit°F = °C × 9/5 + 32
Celsius to KelvinK = °C + 273.15
Celsius to Rankine°R = °C × 9/5 + 491.67
Celsius to Réaumur°Ré = °C × 4/5

Fahrenheit Conversion Formula

Fahrenheit to Celsius°C = (°F − 32) × 5/9
Fahrenheit to KelvinK = (°F + 459.67) × 5/9
Fahrenheit to Rankine°R = °F + 459.67
Fahrenheit to Réaumur°Ré = (°F - 32) × 4/9

Kelvin Conversion Formula

Kelvin to Celsius°C = K − 273.15
Kelvin to Fahrenheit°F = K × 9/5 − 459.67
Kelvin to Rankine°R = K × 9/5
Kelvin to Réaumur°Ré = (K - 273.15) × 4/5

Rankine Conversion Formula

Rankine to Celsius°C = (°R - 491.67) × 5/9
Rankine to Fahrenheit°F = °R − 459.67
Rankine to KelvinK = °R × 5/9
Rankine to Réaumur°Ré = (°R - 491.67) × 4/9

Réaumur Scale Conversion Formula

Réaumur to Celsius°C = °Ré × 5/4
Réaumur to Fahrenheit°F = °Ré × 9/4 + 32
Réaumur to KelvinK = °Ré × 5/4 + 273.15
Réaumur to Rankine°R = °Ré × 9/4 + 491.67