Temperature

Convert between Celsius, Fahrenheit, and Kelvin

Start with the basics and progress through 2 lessons. Each lesson builds on the previous one.

Test Your Knowledge

10 questions, new mix each time (from 32)

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In This Topic (2 lessons)

Temperature measurement and conversion between Celsius, Fahrenheit, and Kelvin scales is essential for science, cooking, and international communication. Understanding the formulas and when to use each scale is practical knowledge.

What You'll Learn

  • Convert between Celsius and Fahrenheit
  • Convert between Celsius and Kelvin
  • Understand when to use each scale
  • Estimate reasonable temperatures
  • Solve temperature word problems

Frequently Asked Questions

What is the formula for Celsius to Fahrenheit?

F = (9/5)C + 32 or F = 1.8C + 32. To reverse: C = (F - 32) × 5/9.

What is Kelvin?

Kelvin is the scientific temperature scale starting at absolute zero (0 K = -273.15°C). K = C + 273.15.

What are key reference temperatures?

Water freezes at 0°C/32°F. Water boils at 100°C/212°F. Body temperature is about 37°C/98.6°F.