Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin temperature scales instantly.
Temperature Converter
Temperature Converter
Celsius, Fahrenheit, and Kelvin
Converted Temperature
Smart Insights
Personalized takeaways from your numbers.
Real-Life Examples
25°C to °F
The Formula Behind It
°F = (°C × 9/5) + 32; K = °C + 273.15How It Works
- Enter the temperature value.
- Select source scale (Celsius, Fahrenheit, or Kelvin).
- Select target scale.
- View converted value in all three scales.
About Temperature Converter
The Temperature Converter converts between Celsius (°C), Fahrenheit (°F), and Kelvin (K) — the three scales used in science, medicine, cooking, and weather. Instant, accurate conversion without memorizing formulas.
Conversion Formulas
Celsius to Fahrenheit: °F = (°C × 9/5) + 32. Fahrenheit to Celsius: °C = (°F − 32) × 5/9. Celsius to Kelvin: K = °C + 273.15. Kelvin is an absolute scale starting at absolute zero (−273.15°C), used in physics and chemistry.
Reference Points
Water freezes at 0°C (32°F) and boils at 100°C (212°F) at sea level. Normal body temperature is approximately 37°C (98.6°F). Room temperature is roughly 20–22°C (68–72°F). Celsius and Fahrenheit intersect at −40°.
Practical Uses
Convert oven temperatures for international recipes (180°C ≈ 350°F). Interpret weather forecasts when traveling abroad. Convert laboratory measurements. Understand medical thermometers using different scales.
Frequently Asked Questions
How to convert Celsius to Fahrenheit?
Multiply Celsius by 9/5 and add 32. Formula — °F = (°C × 9/5) + 32.
How to convert Fahrenheit to Celsius?
Subtract 32 from Fahrenheit, then multiply by 5/9. Formula — °C = (°F - 32) × 5/9.
What is absolute zero?
Absolute zero is 0 Kelvin (-273.15°C or -459.67°F), the lowest possible temperature.
How to convert Celsius to Kelvin?
Add 273.15 to Celsius. K = °C + 273.15.
At what temperature are Celsius and Fahrenheit equal?
-40 degrees. -40°C = -40°F.
What is normal body temperature?
37°C (98.6°F), though normal range is 36.1-37.2°C (97-99°F).
What is room temperature in Fahrenheit?
Room temperature is typically 20-22°C (68-72°F).
Why are there different temperature scales?
Celsius is based on water's freezing/boiling points. Fahrenheit uses a different reference. Kelvin is an absolute scale for science.
How to convert oven temperatures?
180°C ≈ 350°F (moderate oven). 200°C ≈ 400°F (hot oven).
Is Kelvin used in everyday life?
Kelvin is primarily used in scientific and engineering applications, not everyday temperature measurement.