Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin instantly with our accurate temperature conversion tool

Understanding Temperature Scales

Learn about different temperature measurement systems and how they relate

Temperature Scales

The three most common temperature scales are Celsius (°C), Fahrenheit (°F), and Kelvin (K). Celsius is used in most countries, Fahrenheit is primarily used in the United States, and Kelvin is used in scientific contexts.

Key Temperature Points

  • Water Freezes: 0°C, 32°F, 273.15K
  • Water Boils: 100°C, 212°F, 373.15K
  • Absolute Zero: -273.15°C, -459.67°F, 0K
  • Room Temperature: ~20°C, ~68°F, ~293.15K

Important Note

When converting between scales, remember that Kelvin is an absolute scale (starting at absolute zero) while Celsius and Fahrenheit are relative scales. Negative Kelvin values don't exist.

How Temperature Conversion Works

The conversion process uses standard mathematical formulas between different temperature scales

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 to Celsius: °C = K - 273.15

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

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

Frequently Asked Questions

Answers to common questions about temperature conversion

Accurate temperature conversion is essential in scientific calculations, cooking, weather forecasting, and engineering applications.

Yes, our temperature converter is designed to work perfectly on desktops, tablets, and smartphones.

Yes, our temperature converter is completely free and accessible online anytime.

Yes, the converter supports both positive and negative temperature values.

Kelvin is an absolute temperature scale starting at absolute zero (0 K), so it does not have negative values.

Yes, the calculator supports decimal inputs for precise conversions.

No, the formulas are the same for both scientific and everyday temperature conversions.