Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and other temperature scales. Professional temperature conversion tool for cooking, science, engineering, and weather. Used by millions worldwide.
Temperature References
Quick Conversions
Temperature Scale Guide
Celsius (°C)
Most commonly used worldwide. Water freezes at 0°C and boils at 100°C at standard pressure. Developed by Anders Celsius in 1742.
- • Water freezes at 0°C
- • Water boils at 100°C
- • Used in most countries globally
Fahrenheit (°F)
Primarily used in the United States. Water freezes at 32°F and boils at 212°F. Developed by Daniel Gabriel Fahrenheit in 1724.
- • Water freezes at 32°F
- • Water boils at 212°F
- • Common in US weather reports
Kelvin (K)
Absolute temperature scale used in scientific calculations. Zero Kelvin is absolute zero, the theoretical coldest possible temperature.
- • Absolute zero at 0 K
- • Water freezes at 273.15 K
- • Used in scientific calculations
About Temperature Converter
Professional temperature converter supporting Celsius, Fahrenheit, Kelvin, Rankine, and 4 more scales. Instant conversions for cooking, science, engineering, and weather. Used by 400K+ professionals monthly.
Common Use Cases
Convert recipe temperatures between Fahrenheit and Celsius for international recipes
Understand weather forecasts when traveling to countries using different temperature scales
Convert between Kelvin, Celsius, and Fahrenheit for laboratory experiments and data analysis
Calculate thermal properties and perform HVAC system design with multiple temperature units
Convert body temperatures between scales for international medical documentation
Teach temperature concepts and scale relationships in physics and chemistry classes
Monitor and control industrial processes requiring specific temperature ranges
Convert engine temperatures and specifications between metric and imperial systems
Examples & Demonstrations
Convert 20°C to Fahrenheit: (20 × 9/5) + 32 = 68°F. Ideal indoor temperature range.
Input:
Room Temperature Conversion
Output:
Convert 20°C to Fahrenheit: (20 × 9/5) + 32 = 68°F. Ideal indoor temperature range.
Convert 350°F to Celsius: (350 - 32) × 5/9 = 177°C. Common baking temperature.
Input:
Baking Temperature
Output:
Convert 350°F to Celsius: (350 - 32) × 5/9 = 177°C. Common baking temperature.
Absolute zero: -273.15°C = -459.67°F = 0 K. The theoretical coldest possible temperature.
Input:
Scientific Absolute Zero
Output:
Absolute zero: -273.15°C = -459.67°F = 0 K. The theoretical coldest possible temperature.
Normal body temperature: 37°C = 98.6°F = 310.15 K. Important for medical applications.
Input:
Body Temperature Check
Output:
Normal body temperature: 37°C = 98.6°F = 310.15 K. Important for medical applications.
Tips & Best Practices
Remember key temperatures: water freezes at 0°C/32°F, boils at 100°C/212°F, and body temperature is 37°C/98.6°F
For rough Celsius to Fahrenheit: double the number and add 30. For precision, use (C × 9/5) + 32
Always use Kelvin for scientific calculations involving temperature ratios or absolute measurements
Ensure meat reaches safe internal temperatures: chicken 165°F/74°C, beef 145°F/63°C for medium-rare
When traveling, learn basic temperature conversions: 20°C = 68°F (comfortable), 0°C = 32°F (freezing)
Use 1 decimal place for weather, 2-4 for scientific work, and whole numbers for general cooking
Related Tools
Length Converter
Convert between different length and distance units
Weight Converter
Convert between various weight and mass units
Volume Converter
Convert between different volume and capacity units
Currency Converter
Real-time currency exchange rates
Unit Converter
All-in-one unit conversion tools
Scientific Calculator
Advanced scientific calculations
Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
To convert Celsius to Fahrenheit, multiply the Celsius temperature by 9/5 (or 1.8) and add 32. For example: 25°C × 9/5 + 32 = 77°F. Our calculator does this automatically for instant results.
What is the difference between Celsius and Kelvin?
Kelvin is an absolute temperature scale starting at absolute zero (-273.15°C). To convert Celsius to Kelvin, simply add 273.15. For example: 25°C + 273.15 = 298.15 K. Kelvin is commonly used in scientific calculations.
What temperature scales does this converter support?
Our converter supports 8 temperature scales: Celsius (°C), Fahrenheit (°F), Kelvin (K), Rankine (°R), Réaumur (°Ré), Delisle (°De), Newton (°N), and Rømer (°Rø), covering all common scientific and historical temperature measurements.
How accurate are the temperature conversions?
Our temperature converter provides scientific precision with calculations accurate to 4 decimal places. All conversion formulas are based on internationally recognized temperature scale definitions and standards.
Can I use this temperature converter for cooking?
Yes! Our converter is perfect for cooking and baking. It includes common cooking temperature references and supports easy conversion between Fahrenheit (used in US recipes) and Celsius (used internationally).
What is absolute zero in different temperature scales?
Absolute zero, the coldest possible temperature, is: -273.15°C, -459.67°F, 0 K, and 0°R. This is when all molecular motion theoretically stops. Our converter includes this important reference point.
Why Choose Temperature Converter?
Our temperature converter stands out from other online tools with its precision, speed, and user-friendly interface. Built by engineers for professionals, students, and everyday users, it provides accurate results instantly without requiring any software installation or registration.
With robust error handling, multiple format support, and responsive design, this tool works seamlessly across all devices and browsers. Trust ConvertLarge for all your conversion and calculation needs.