Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur. Get instant accurate conversions with helpful references.
Temperature Conversion
Common Temperature Points
All Temperature Scales
Conversion Result
Conversion Formula
(°C × 9/5) + 32 = °F
Temperature Scales
- Celsius: Water freezes at 0°, boils at 100°
- Fahrenheit: Water freezes at 32°, boils at 212°
- Kelvin: Absolute zero is 0K, no negative values
How to Use the Temperature Converter
Enter Value
Input the temperature value to convert
Select From Unit
Choose the original temperature scale
Select To Unit
Choose the target temperature scale
View Result
See conversion formula and result instantly
Understanding Temperature Conversion
What is Temperature Conversion?
Temperature conversion transforms values between different temperature scales like Celsius, Fahrenheit, and Kelvin. Each scale has its own zero point and degree size, requiring specific mathematical formulas for accurate conversion.
- • Celsius: Water freezes at 0°, boils at 100° - most common worldwide
- • Fahrenheit: Water freezes at 32°, boils at 212° - used mainly in US
- • Kelvin: Absolute zero is 0K - used in science
- • Rankine/Réaumur: Specialized engineering applications
Why Convert Temperatures?
Different countries and industries use different temperature scales. Converting between them is essential for weather forecasting, cooking, scientific research, engineering, and international communication.
- • Travel: Understand weather forecasts in different countries
- • Cooking: Follow recipes from international sources
- • Science: Lab work requires precise Kelvin measurements
- • Engineering: HVAC, manufacturing specifications
Instant Conversion
Real-time conversion as you type with accurate formulas displayed.
100% Private
All calculations happen in your browser. No data is sent to any server.
Completely Free
No registration or fees. Convert temperatures as often as you need.
Temperature Conversion FAQ
How accurate are the conversion results?
Results use standard scientific formulas for Celsius, Fahrenheit, Kelvin, Rankine, and Reaumur with high precision.
Which temperature scales are supported?
This converter supports Celsius, Fahrenheit, Kelvin, Rankine, and Reaumur conversions in both directions.
Can I use decimal values?
Yes. Decimal temperature input is fully supported for scientific and engineering use cases.
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