Convert temperature from Celsius (°C) to Fahrenheit (°F) with our precise calculator. Get instant results for any temperature value.
Enter a value in either the "From" or "To" field, select the units you want to convert between, and the converter will automatically calculate the result. You can swap the units using the swap button, adjust decimal precision with the slider, and view your conversion history in the History tab.
| Celsius (°C) | Fahrenheit (°F) | Common Reference |
|---|---|---|
| -40 | -40 | Equal temperature point |
| -20 | -4 | |
| -10 | 14 | |
| 0 | 32 | Water freezing point |
| 10 | 50 | |
| 20 | 68 | Room temperature |
| 30 | 86 | |
| 37 | 98.6 | Human body temperature |
| 40 | 104 | |
| 50 | 122 | |
| 60 | 140 | |
| 70 | 158 | |
| 80 | 176 | |
| 90 | 194 | |
| 100 | 212 | Water boiling point |
Understanding temperature conversions is crucial for international weather forecasts and travel. While most countries use Celsius, the US uses Fahrenheit. For example, a comfortable room temperature of 20°C equals 68°F.
Many recipes, especially international ones, list oven temperatures in both Celsius and Fahrenheit. Common baking temperatures include 350°F (175°C) for cakes and 450°F (230°C) for bread.
Medical professionals need to understand both scales, especially when working internationally. A fever in Celsius (above 38°C) translates to above 100.4°F in Fahrenheit.
While scientific work typically uses Celsius (or Kelvin), researchers often need to convert temperatures when communicating findings to the general public or when working with equipment calibrated in different units.
The Celsius scale, also known as the centigrade scale, was proposed by Swedish astronomer Anders Celsius in 1742. It sets the freezing point of water at 0°C and the boiling point at 100°C under standard atmospheric pressure. The Fahrenheit scale, developed by Daniel Gabriel Fahrenheit in 1724, sets water's freezing point at 32°F and its boiling point at 212°F. While Celsius is used in most countries worldwide, Fahrenheit remains the standard temperature scale in the United States and a few other nations.
Common reference points: • Water freezing point: 0°C = 32°F • Room temperature: ~20-22°C = 68-72°F • Normal body temperature: 37°C = 98.6°F • Water boiling point: 100°C = 212°F The Celsius scale is part of the metric system and is used in most scientific work worldwide, while Fahrenheit is primarily used in the United States for everyday temperature measurements.
To convert from Celsius to Fahrenheit, multiply the Celsius value by 9/5 (or 1.8) and then add 32. The formula is: °F = (°C × 9/5) + 32
The conversion factor from Celsius to Fahrenheit is 1.8 (or 9/5), plus an offset of 32. This means that 1°C equals 33.8°F (1 × 1.8 + 32).
Celsius and Fahrenheit are equal at -40 degrees. This is the only point where the two temperature scales have the same numerical value.
Different regions of the world use different temperature scales. Celsius is used in most countries and in scientific work, while Fahrenheit is primarily used in the United States for everyday temperature measurements. Having conversion tools helps bridge these different systems.
Normal human body temperature is approximately 37°C or 98.6°F. However, normal body temperature can vary slightly from person to person and can fluctuate throughout the day.