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Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, and Rankine with real-time results, formulas, and reference points

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About This Tool

Temperature Converter is an online tool that instantly converts between Celsius, Fahrenheit, Kelvin, and Rankine. It displays conversion formulas, common reference points, and keeps a history of your conversions — all processed locally in your browser.

Key Features

Quick Preview

Use Cases

datetime conversion

Frequently Asked Questions

What is the Temperature Converter?

The Temperature Converter is an online format converter that converts between Celsius, Fahrenheit, Kelvin, and Rankine with real-time results, formulas, and reference points. It runs entirely in your browser with no data sent to any server.

What temperature scales are supported?

The tool supports four temperature scales: Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R). Enter a value in any scale and all other scales update in real time with the converted values.

What are the reference points shown?

The tool displays key temperature reference points: absolute zero (-273.15°C / 0K), water freezing point (0°C / 32°F), body temperature (37°C / 98.6°F), and water boiling point (100°C / 212°F). These help contextualize your conversions.

How are the conversion formulas derived?

Each formula is based on the mathematical relationship between temperature scales. For example, Celsius to Fahrenheit uses °F = (°C × 9/5) + 32. The tool shows the relevant formula for your current conversion direction.

What is the Rankine scale used for?

The Rankine scale (°R) is an absolute temperature scale like Kelvin, but uses Fahrenheit-sized degrees. It is primarily used in certain engineering fields in the United States, particularly in thermodynamics calculations involving the Fahrenheit scale.

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