Convert temperature between Celsius (°C) and Fahrenheit (°F) with step-by-step solutions and conversion formulas.
• 0 °C = 32 °F (Water freezes)
• 100 °C = 212 °F (Water boils)
• 37 °C = 98.6 °F (Body temp)
Enter a temperature and click Calculate
Convert between Celsius and Fahrenheit with step-by-step solutions
Temperature conversion between Celsius (°C) and Fahrenheit (°F) is essential for international communication, travel, cooking, science, and daily weather understanding. The Celsius scale, also known as centigrade, is used worldwide in most countries and scientific applications, while Fahrenheit is primarily used in the United States, its territories, and a few other countries.
Our Temperature Converter provides instant, accurate conversions with complete step-by-step solutions. Understanding these formulas helps you mentally estimate temperatures when traveling or working with international recipes and scientific data.
°F = (°C × 9/5) + 32
or
°F = (°C × 1.8) + 32
Example: Convert 50°C to Fahrenheit
°F = (50 × 1.8) + 32
°F = 90 + 32
°F = 122
°C = (°F − 32) × 5/9
or
°C = (°F − 32) × 0.5556
Example: Convert 122°F to Celsius
°C = (122 − 32) × 0.5556
°C = 90 × 0.5556
°C = 50
Choose °C to °F or °F to °C using the toggle buttons.
Type the temperature value. Accepts positive and negative numbers, including decimals.
Click Calculate or press Enter to see the converted temperature with step-by-step solution.
When traveling internationally, convert weather forecasts to understand local temperatures. US travelers abroad need Celsius conversion; international visitors to the US need Fahrenheit.
Convert oven temperatures for international recipes. European recipes use Celsius; American recipes use Fahrenheit. Essential for accurate baking and cooking results.
Scientific research uses Celsius. Medical professionals may need to convert body temperatures between scales for international patient records and research data.
Manufacturing specifications, HVAC systems, and engineering projects often require temperature conversions between metric and imperial systems.
| Celsius (°C) | Fahrenheit (°F) | Description |
|---|---|---|
| -40 | -40 | Same temperature |
| 0 | 32 | Water freezes |
| 10 | 50 | Cool day |
| 20 | 68 | Room temperature |
| 37 | 98.6 | Body temperature |
| 100 | 212 | Water boils |
The 32 represents the offset between the two scales' zero points. Water freezes at 0°C but 32°F, so we add 32 to account for this 32-degree difference in the starting points of the two scales.
-40° is the same in both scales: -40°C = -40°F. This is the only temperature where both scales intersect and show the same numerical value.
Only a few countries use Fahrenheit: the United States, Bahamas, Belize, Cayman Islands, and Palau. The rest of the world uses Celsius as their standard temperature scale.
The ratio 9/5 (1.8) comes from the relationship between the scales. Fahrenheit has 180 degrees between water's freezing and boiling points (32°F to 212°F), while Celsius has 100 degrees (0°C to 100°C). The ratio 180/100 simplifies to 9/5.
Understanding temperature conversion between Celsius and Fahrenheit is a practical skill for international travel, cooking, science, and daily life. Whether you're checking the weather forecast in a foreign country, following an international recipe, or working on a scientific project, being able to quickly convert between these temperature scales is invaluable.
Our Temperature Converter makes these conversions instant and accurate, with step-by-step solutions to help you understand the mathematics behind the conversion. Use this tool whenever you need reliable temperature conversion with detailed explanations!