temperature Converter

Convert temperature units instantly with our free online temperature converter. Whether you need to convert Celsius to Fahrenheit, Fahrenheit to Celsius, or any other temperature conversion, our calculator provides accurate results for weather, cooking, scientific, and engineering applications.

Temperature conversion is essential for international weather reports, cooking recipes, scientific research, and engineering calculations. Our tool supports all major temperature scales including Celsius (°C), Fahrenheit (°F), Kelvin (K), Rankine (°R), and Réaumur (°Ré).

Common Temperature Scales:

• Celsius (°C): The most widely used temperature scale globally. Water freezes at 0°C and boils at 100°C. Used in weather, science, and everyday life worldwide.
• Fahrenheit (°F): Primarily used in the United States. Water freezes at 32°F and boils at 212°F. Common in weather reports and cooking in the US.
• Kelvin (K): The SI base unit of thermodynamic temperature. Absolute zero is 0 K (-273.15°C). Used in scientific and engineering applications.
• Rankine (°R): Absolute temperature scale using Fahrenheit degrees. Absolute zero is 0°R (459.67°F). Used in some engineering applications.
• Réaumur (°Ré): Historical temperature scale where water freezes at 0°Ré and boils at 80°Ré. Rarely used today but found in some European contexts.

Essential Temperature Conversions:

• 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

Step-by-Step Conversion Examples:

Convert 25°C to Fahrenheit:

°F = (25 × 9/5) + 32 = 45 + 32 = 77°F

Convert 100°F to Celsius:

°C = (100 - 32) × 5/9 = 68 × 5/9 = 37.8°C

Convert 0°C to Kelvin:

K = 0 + 273.15 = 273.15 K

Common Uses for Temperature Conversion:

• Weather & Travel: Converting weather forecasts between Celsius and Fahrenheit when traveling internationally or reading foreign weather reports.
• Cooking & Baking: Converting oven temperatures between °C and °F for international recipes and cooking instructions.
• Scientific Research: Converting between Celsius and Kelvin for scientific calculations, chemistry, and physics experiments.
• Medical Applications: Converting body temperature readings between scales for international medical standards and equipment.
• Engineering & HVAC: Converting operating temperatures for international equipment specifications and industrial processes.
• Education: Converting temperatures for international students and academic collaboration across different measurement systems.
• Manufacturing: Converting process temperatures for international production standards and quality control.