Universal Temperature Converter
Common Temperatures
Click on any temperature to convert it instantly
Temperature Conversion Tools
Choose from our specialized temperature conversion calculators
Celsius to Fahrenheit
Convert Celsius to Fahrenheit instantly. Perfect for weather, cooking, and scientific calculations.
Fahrenheit to Celsius
Convert Fahrenheit to Celsius quickly. Essential for US measurements and international travel.
Celsius to Kelvin
Convert Celsius to Kelvin for scientific and engineering calculations. Absolute temperature scale.
Kelvin to Celsius
Convert Kelvin to Celsius. Useful for physics, chemistry, and scientific research.
Fahrenheit to Kelvin
Convert Fahrenheit to Kelvin. Advanced scientific conversions for research and engineering.
Kelvin to Fahrenheit
Convert Kelvin to Fahrenheit. Scientific conversions for advanced calculations and research.
Conversion Formulas
Understand the mathematics behind temperature conversions
Multiply by 9, divide by 5, then add 32
Subtract 32, multiply by 5, then divide by 9
Add 273.15 to Celsius temperature
Subtract 273.15 from Kelvin temperature
Temperature Scale Comparison
| Description | Celsius (°C) | Fahrenheit (°F) | Kelvin (K) |
|---|---|---|---|
| Absolute Zero | -273.15 | -459.67 | 0 |
| Water Freezes | 0 | 32 | 273.15 |
| Average Room Temperature | 20-22 | 68-72 | 293.15-295.15 |
| Human Body Temperature | 37 | 98.6 | 310.15 |
| Water Boils | 100 | 212 | 373.15 |
| Oven Temperature (Typical) | 180 | 356 | 453.15 |
Frequently Asked Questions
What is the formula to convert Celsius to Fahrenheit?
To convert Celsius to Fahrenheit: Multiply the Celsius temperature by 9/5, then add 32. Formula: °F = (°C × 9/5) + 32
What temperature do Celsius and Fahrenheit equal?
Celsius and Fahrenheit are equal at -40 degrees. So -40°C = -40°F.
What is Kelvin used for?
Kelvin is used in scientific contexts because it's an absolute temperature scale where 0 K represents absolute zero (the lowest possible temperature). It's commonly used in physics, chemistry, and astronomy.
Why does the US use Fahrenheit?
The US continues to use Fahrenheit primarily due to historical reasons and the cost of transitioning. Most of the world uses Celsius as part of the metric system, which the US has been slowly adopting.
What is absolute zero?
Absolute zero is the lowest possible temperature where particles have minimal thermal motion. It's -273.15°C, -459.67°F, or 0 K. At this temperature, particles essentially stop moving.