Temperature Converter

Convert temperatures between Celsius, Fahrenheit, and Kelvin.

Temperature Converter: Celsius, Fahrenheit & Kelvin

Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with our Temperature Converter. Whether you're following an international recipe, checking the weather for an overseas trip, or solving a physics problem, this tool provides instant and accurate conversions.

3-Way Conversion

Input a value in any field, and the other two scales update instantly. No mode switching required.

Scientific Accuracy

Uses precise formulas including Kelvin (absolute zero) calculations for scientific accuracy.

Mobile Friendly

Optimized for phones and tablets, perfect for quick checks while traveling or in the lab.

Understanding Temperature Scales

Scale Symbol Used In Freezing Point (Water) Boiling Point (Water)
Celsius °C Most of the world, Science 0°C 100°C
Fahrenheit °F United States, Liberia, etc. 32°F 212°F
Kelvin K Physics, Thermodynamics 273.15 K 373.15 K

Common Conversion Formulas

  • Celsius to Fahrenheit: (C × 9/5) + 32 = F
  • Fahrenheit to Celsius: (F - 32) × 5/9 = C
  • Celsius to Kelvin: C + 273.15 = K
  • Kelvin to Celsius: K - 273.15 = C

Real-World Use Cases

Cooking

Oven temperatures often need converting. 350°F is roughly 180°C.

Travel

Understanding weather forecasts. 30°C is hot (86°F), while 30°F is freezing.

Science

Lab experiments often require Kelvin for thermodynamic calculations.

Health

Body temperature checks. Normal body temp is 37°C or 98.6°F.

Frequently Asked Questions

Why does -40°C equal -40°F?

This is the unique point where the two scales intersect. At -40 degrees, the value is the same in both Celsius and Fahrenheit.

What is Absolute Zero?

Absolute zero is 0 Kelvin (-273.15°C or -459.67°F). It is the theoretical lowest temperature possible where all molecular motion stops.

Is this tool accurate for scientific work?

Yes, it uses the standard scientific conversion formulas including the .15 offset for Kelvin.