Converters

Temperature Converter

Convert temperatures among Celsius, Fahrenheit and Kelvin for cooking, science and travel.

Quick answer

Enter a temperature and choose the source and target scale. The converter applies the correct temperature formula.

CONVERT UNITS

From one unit to another

Instant conversion
Conversion1 °C = 33.8 °F

Celsius to Fahrenheit: °F = °C × 9/5 + 32

Private by design

Your files are processed locally in your browser whenever supported. Inputs are not stored on itotii servers.

What is Temperature Converter?

Convert temperatures among Celsius, Fahrenheit and Kelvin for cooking, science and travel.

Enter a temperature and choose the source and target scale. The converter applies the correct temperature formula.

How to use this tool

  1. 1

    Enter a temperature and select Celsius, Fahrenheit or Kelvin.

  2. 2

    Choose the scale you want to convert to.

  3. 3

    Read the converted value and use the formula shown for Celsius to Fahrenheit.

Features

  • Celsius, Fahrenheit and Kelvin
  • Supports negative values where valid
  • Shows a result immediately

Example

20°C × 9/5 + 32 = 68°F.

Formula°F = °C × 9/5 + 32

Frequently asked questions

How do I convert Celsius to Fahrenheit?+

Multiply Celsius by 9/5 and add 32.

Can Kelvin be negative?+

This converter accepts numeric inputs, but temperatures below absolute zero (0 K) are not physically meaningful.

About this temperature converter

Temperature Converter is part of itotii’s free collection of browser-based utilities. It is designed for a quick workflow: find the tool, complete the task and keep control of your files and data.

Output depends on your input and browser support. Review the result before using it in a published or important document.