Temperature Converter
Instantly convert temperatures between Celsius, Fahrenheit, and Kelvin — fast, free, and 100% client-side
About What is a Temperature Converter?
A Temperature Converter is a free online tool that allows you to instantly convert temperature values between different scales including Celsius (°C), Fahrenheit (°F), and Kelvin (K). It's essential for cooking, weather forecasting, scientific research, international travel, and understanding temperature measurements from different countries and contexts.
Our converter supports all three major temperature scales used worldwide. Celsius is the most widely used scale globally, standard in science and most countries. Fahrenheit is primarily used in the United States and a few other nations. Kelvin is the SI base unit for temperature, used extensively in scientific research and calculations.
All calculations happen entirely in your browser using JavaScript—no data is ever sent to servers, stored, or shared. The tool is completely free, requires no registration, and works on all devices including desktops, tablets, and smartphones. Perfect for quick conversions when cooking with international recipes, checking weather reports, or scientific calculations.
Key Features of Temperature Converter
Everything you need for professional temperature converter
Real-Time Conversion
See instant results as you type. All three temperature scales update simultaneously for seamless conversion.
Three Temperature Scales
Convert between Celsius, Fahrenheit, and Kelvin effortlessly. Perfect for cooking, science, and travel.
Precise Calculations
Accurate temperature conversions with proper decimal handling. No rounding errors or floating point issues.
Bidirectional Input
Enter a value in any field and all others update automatically. No need to select source or target scales.
Mobile Optimized
Fully responsive design that works perfectly on any device. Convert temperatures on-the-go from your phone.
100% Private
All calculations happen in your browser. No data is sent to servers or stored anywhere. Complete privacy.
How to Use Temperature Converter
Follow these simple steps to get started
Enter Temperature
Type your temperature value into any field - Celsius, Fahrenheit, or Kelvin.
View Conversions
See all other temperature scales update automatically in real-time.
Reset if Needed
Click the reset button to clear all fields and start fresh.
Pro Tips
- Water freezes at 0°C (32°F, 273.15K) and boils at 100°C (212°F, 373.15K) at sea level.
- For cooking, common oven temperatures are 180°C (350°F) for moderate and 200°C (400°F) for hot.
- Room temperature is typically around 20-22°C (68-72°F) or about 293-295K.
- Absolute zero (0K or -273.15°C) is the lowest possible temperature where all molecular motion stops.
- A quick Fahrenheit to Celsius estimate: subtract 30, then divide by 2.
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Frequently Asked Questions
Everything you need to know about Temperature Converter
What is a Temperature Converter?
A Temperature Converter is a free online tool that allows you to instantly convert temperature values between different scales including Celsius (°C), Fahrenheit (°F), and Kelvin (K). It's essential for cooking, weather forecasting, scientific research, international travel, and understanding temperature measurements.
What is Celsius (°C)?
Celsius (also called Centigrade) is a temperature scale where 0°C represents the freezing point of water and 100°C represents the boiling point of water at standard atmospheric pressure. It is the most widely used temperature scale globally and is the standard in most countries.
What is Fahrenheit (°F)?
Fahrenheit is a temperature scale where water freezes at 32°F and boils at 212°F under standard atmospheric conditions. It is primarily used in the United States, its territories, and a few Caribbean nations.
What is Kelvin (K)?
Kelvin is the base unit of temperature in the International System of Units (SI). It is an absolute temperature scale, meaning 0 K represents absolute zero—the theoretical temperature at which all molecular motion ceases. Kelvin is extensively used in scientific research.
How do I convert Celsius to Fahrenheit?
To convert Celsius to Fahrenheit manually, use the formula: °F = (°C × 9/5) + 32. For example, 20°C = (20 × 9/5) + 32 = 68°F. Our converter does this instantly—just type your Celsius value.
Is my data safe and private?
Absolutely! All temperature conversions happen entirely in your web browser using JavaScript. No data is ever sent to our servers, stored, or shared with third parties. This tool is 100% client-side, ensuring complete privacy.
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