Temperature Converter
Convert temperature between Celsius, Fahrenheit, and Kelvin scales instantly.
Temperature Scales Explained
Celsius (°C):
- Official name: Centigrade (before 1948)
- Freezing point: 0°C
- Boiling point: 100°C
- Used in: Most countries worldwide
Fahrenheit (°F):
- Freezing point: 32°F
- Boiling point: 212°F
- Used in: United States, Bahamas, Belize, Cayman Islands
Kelvin (K):
- Absolute zero: 0 K (lowest possible temperature)
- Freezing point of water: 273.15 K
- Used in: Science, physics, and engineering
Quick Reference:
- Room temperature: 20-25°C (68-77°F)
- Body temperature: 37°C (98.6°F)
- Water boils: 100°C (212°F)
- Ice freezes: 0°C (32°F)
How to use the Temperature Converter
- Enter the temperature.
- Choose the unit you are converting from.
- Choose the unit you want to see.
- Click Convert; all three scales are shown.
Formula used
°F = °C × 9/5 + 32 °C = (°F − 32) × 5/9 K = °C + 273.15
Worked example
Common conversions
37 °C (body temperature) = 98.6 °F
100 °F = 37.8 °C (fever)
180 °C oven = 356 °F
0 °C = 32 °F = 273.15 K
Reading fever and oven temperatures
Indian thermometers often show both scales. Normal body temperature ranges from about 97 to 99 °F (36.1–37.2 °C); 100.4 °F (38 °C) or above is generally a fever. US recipes give oven temperatures in Fahrenheit: 350 °F is about 175 °C. −40 is the one temperature that is the same in Celsius and Fahrenheit.
Tips for accurate results
- Kelvin has no degree sign and cannot be negative.
- A quick estimate: double the Celsius and add 30.
- Use exact formulas for medicine and science.
Frequently Asked Questions
37 °C.
Multiply by 9/5 and add 32.
0 K, which is −273.15 °C.
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Content reviewed by Vinod, Easy Smart Calculator · Last updated October 2026