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Temperature Converter
Introduction to the Temperature Converter
The Temperature Converter changes a temperature from one scale to another. It works with Celsius, Fahrenheit and Kelvin. Use it for cooking, weather, school science and travel.
How to Use the Temperature Converter
- Type the temperature.
- Pick the scale you have.
- Pick the scale you want.
- Press Convert to see the answer.
Formula Reference
Celsius to Fahrenheit: °F = (°C × 9/5) + 32
Fahrenheit to Celsius: °C = (°F − 32) × 5/9
Celsius to Kelvin: K = °C + 273.15
Kelvin to Celsius: °C = K − 273.15
Worked Example
Say a US weather report shows 98°F. Subtract 32 to get 66. Multiply by 5/9. The answer is about 36.7°C. Now you know it is a hot day, and you did not have to guess.
Practical Context
Different countries use different scales. This matters when you travel and read the weather. It matters in the kitchen, as US recipes give oven heat in Fahrenheit and many other recipes use Celsius. It matters in health, as fever limits are shown in different scales. Scientists use Kelvin in physics and chemistry.
FAQs
Q1: Why does the US use Fahrenheit while most other countries use Celsius?
The US kept the Fahrenheit scale from British rule. Most other countries later chose Celsius when they moved to the metric system.
Q2: What is considered a fever in Celsius and Fahrenheit?
A fever usually starts at about 38°C (100.4°F) in adults. The exact limit can change a little with the way you measure it.
Q3: Why do scientists use Kelvin instead of Celsius?
Kelvin starts at absolute zero. This is the lowest possible temperature, where particles stop moving. That makes it a good fit for gas laws and other physics work.
Q4: What is a quick trick to change Celsius to Fahrenheit?
Double the Celsius value and add 30. This gives a close guess for Fahrenheit. It is not exact, but it works well for daily use.