Converters
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Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly
Input
Celsius
Result
Result
Fahrenheit
Common Temperature References
| Reference | Celsius | Fahrenheit | Kelvin |
|---|---|---|---|
| Absolute Zero | -273.15 °C | -459.67 °F | 0.00 K |
| Water Freezing Point | 0.00 °C | 32.00 °F | 273.15 K |
| Room Temperature | 20.00 °C | 68.00 °F | 293.15 K |
| Human Body Temperature | 37.00 °C | 98.60 °F | 310.15 K |
| Water Boiling Point | 100.00 °C | 212.00 °F | 373.15 K |
Temperature Converter Tool
Convert temperature between Celsius, Fahrenheit, and Kelvin instantly with precision and ease. Our temperature converter supports bidirectional conversion with real-time calculation and displays all three units simultaneously for quick reference. Perfect for science, cooking, weather analysis, and everyday temperature conversions.
Instant temperature conversion with support for all three major temperature scales. The tool provides real-time conversion as you type, displays all units simultaneously for easy comparison, includes common temperature reference points for context, validates against absolute zero, and offers one-click unit swapping for reverse conversions.
Essential for scientific calculations, cooking and baking with international recipes, weather comparison across different regions, HVAC and engineering work, educational purposes, travel planning, and any scenario requiring accurate temperature unit conversion between Celsius, Fahrenheit, and Kelvin scales.
Fast and accurate conversions with no delays, shows all three temperature scales simultaneously for easy comparison, includes helpful reference temperatures like freezing/boiling points, validates input to prevent impossible temperatures below absolute zero, works completely offline in your browser with complete privacy, and provides formatted output ready to copy.
Key Features
- Convert between Celsius, Fahrenheit, and Kelvin
- Real-time conversion as you type
- Display all three units simultaneously
- Common temperature references included
- Validates against absolute zero
- One-click unit swapping
- Copy individual or result values
- High precision calculations
- Browser-based (no uploads)
- Free and unlimited usage
Temperature Converter Frequently Asked Questions
What are the formulas for temperature conversion?
Celsius to Fahrenheit: °F = (°C × 9/5) + 32. Fahrenheit to Celsius: °C = (°F - 32) × 5/9. Celsius to Kelvin: K = °C + 273.15. These formulas provide precise conversions between all three temperature scales.
Why can't I enter temperatures below absolute zero?
Absolute zero is the lowest possible temperature where molecular motion stops. It's -273.15°C, -459.67°F, or 0 K. Temperatures below this are physically impossible, so the converter validates against these limits to ensure scientifically accurate results.
When should I use Celsius, Fahrenheit, or Kelvin?
Celsius is used in most countries and scientific contexts. Fahrenheit is primarily used in the United States for everyday temperatures. Kelvin is the SI unit used in scientific research, especially physics and chemistry, because it starts at absolute zero and has no negative values.
How accurate are the conversions?
Our converter uses precise mathematical formulas with up to 4 decimal places for input and 2 decimal places for output. This provides scientific-grade accuracy suitable for professional use, educational purposes, and everyday applications.
Pro Tips
- Use the reference table to quickly identify common temperatures
- The 'All Units' display shows conversions in all three scales simultaneously
- Click the copy icon on individual units to copy specific values
- Use the swap button to quickly reverse your conversion direction
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