Celsius to Fahrenheit Calculator

Created by: Sophia Bennett
Last updated:
This Celsius to Fahrenheit Calculator provides a simple way to convert temperatures between degrees Celsius (°C) and degrees Fahrenheit (°F). Enter a value in either field to see the instant conversion. It's useful for weather forecasts, cooking recipes, or any situation requiring temperature unit changes.
What is a Celsius to Fahrenheit Converter?
A Celsius to Fahrenheit Converter is a tool used to convert temperatures from degrees Celsius (°C) to degrees Fahrenheit (°F), and vice versa. These are the two most common temperature scales used around the world. Celsius is part of the metric system and is standard in most countries, while Fahrenheit is primarily used in the United States and a few other territories. This converter is essential for anyone needing to understand or communicate temperatures across these different systems, for example, in weather forecasting, cooking, or scientific applications.
Temperature Conversion Formulas
Celsius to Fahrenheit Formula
To convert from Celsius to Fahrenheit, use this formula:
°F = (°C × 9/5) + 32
Fahrenheit to Celsius Formula
To convert from Fahrenheit to Celsius, use this formula:
°C = (°F - 32) × 5/9
Variable Definitions
- °C = Temperature in degrees Celsius
- °F = Temperature in degrees Fahrenheit
- 9/5 = Conversion factor (equivalent to 1.8)
- 32 = Offset between freezing points of water in both scales
Temperature Conversion Examples
Example 1: Converting 20°C to Fahrenheit
Given: 20°C
- Apply the formula: °F = (20 × 9/5) + 32
- Calculate multiplication: 20 × 9/5 = 20 × 1.8 = 36
- Add the offset: 36 + 32 = 68
- Result: 20°C = 68°F
Example 2: Converting 68°F to Celsius
Given: 68°F
- Apply the formula: °C = (68 - 32) × 5/9
- Calculate subtraction: 68 - 32 = 36
- Calculate multiplication: 36 × 5/9 = 36 × 0.556 = 20
- Result: 68°F = 20°C
Common Applications
- Weather Reports: Converting temperatures for international audiences or when traveling abroad
- Cooking and Baking: Adjusting oven temperatures for recipes from different regions
- Scientific Research: Ensuring consistent temperature measurements in experiments and data analysis
- International Travel: Understanding local temperatures when visiting countries using different temperature scales
- Healthcare: Converting body temperature measurements depending on the thermometer or medical equipment used
- Industrial Applications: Temperature monitoring in manufacturing, HVAC systems, and quality control
Sources and References
- National Institute of Standards and Technology (NIST). (2008). Guide to the SI, Appendix B: Conversion Factors.
- World Meteorological Organization. (2021). Guide to Meteorological Instruments and Methods of Observation (WMO-No. 8).
- Serway, R. A., & Jewett, J. W. (2018). Physics for Scientists and Engineers. Cengage Learning.