Tool Base

Calculators & Converters

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin using the correct offset formulas — not a simple multiply-only scale.

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How to Convert Temperature

  1. Step 1

    Choose scales

    Provide the values or units for this calculation.

  2. Step 2

    Enter a temperature

    The result updates as you change inputs.

  3. Step 3

    Review the converted value

    Copy the result or reset to start again.

Temperature Formulas

  • Celsius, Fahrenheit, and Kelvin
  • Correct offset formulas
  • Decimal temperature support
  • Negative values supported
  • Instant results

Supported Scales

Input formats

  • Temperature values

Output formats

  • Converted temperature

Supported formats

  • °C
  • °F
  • K

Examples

Celsius to Fahrenheit

°F = (°C × 9/5) + 32

Input

0 °C

Output

32 °F

Fahrenheit to Celsius

°C = (°F − 32) × 5/9

Input

212 °F

Output

100 °C

Celsius to Kelvin

K = °C + 273.15

Input

25 °C

Output

298.15 K

Frequently Asked Questions

What is 0°C in Fahrenheit?

0°C equals 32°F.

What is 100°C in Fahrenheit?

100°C equals 212°F.

How do I convert Celsius to Kelvin?

Add 273.15. For example, 0°C = 273.15 K.

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