Enter a temperature to convert
Results
Conversion History
Frequently Asked Questions (FAQ)
What is the formula for converting between Celsius and Fahrenheit?
The conversion formulas are:
What are some common temperature reference points?
- Water freezing point: \(0^{\circ}\)C = \(32^{\circ}\)F
- Water boiling point: \(100^{\circ}\)C = \(212^{\circ}\)F
- Room temperature: \(\approx 20^{\circ}\)C = \(68^{\circ}\)F
- Body temperature: \(37^{\circ}\)C = \(98.6^{\circ}\)F
Why do we have different temperature scales?
The Celsius scale was proposed by Anders Celsius in 1742 and is used in most countries. It's based on the freezing (0°C) and boiling (100°C) points of water. The Fahrenheit scale, developed by Daniel Fahrenheit in 1724, is primarily used in the United States. Fahrenheit based his scale on a mixture of ice, water, and ammonium chloride (0°F) and average human body temperature (96°F).
How does temperature relate to the Ideal Gas Law?
Temperature is a fundamental variable in the Ideal Gas Law: \[PV = nRT\] where T is temperature in Kelvin (K). As temperature increases, either pressure (P) increases if volume is constant, or volume (V) increases if pressure is constant. This relationship is crucial for understanding gas behavior in chemistry and physics. Learn more about these relationships in our Ideal Gas Law Calculator.
Note: For gas law calculations, temperatures must be converted to Kelvin by adding 273.15 to Celsius: \[K = °C + 273.15\]
Temperature Conversion Code Examples
Temperature conversion is a common programming task across scientific computing, data analysis, and general software development. Here are implementations in Python, R, and JavaScript, showcasing different language-specific approaches and best practices.
Each example demonstrates:
- Function definitions for bidirectional conversion
- Proper handling of floating-point arithmetic
- String formatting with degree symbols
- Real-world usage scenarios
def celsius_to_fahrenheit(celsius):
return (celsius * 9/5) + 32
def fahrenheit_to_celsius(fahrenheit):
return (fahrenheit - 32) * 5/9
# Example usage
temp_c = 25
temp_f = celsius_to_fahrenheit(temp_c)
print(f"{temp_c}°C = {temp_f}°F")
temp_f = 98.6
temp_c = fahrenheit_to_celsius(temp_f)
print(f"{temp_f}°F = {temp_c}°C")98.6°F = 37.0°C
# Define conversion functions
celsius_to_fahrenheit <- function(celsius) {
(celsius * 9/5) + 32
}
fahrenheit_to_celsius <- function(fahrenheit) {
(fahrenheit - 32) * 5/9
}
# Example usage
temp_c <- 25
temp_f <- celsius_to_fahrenheit(temp_c)
cat(sprintf("%g\u00B0C = %g\u00B0F\n", temp_c, temp_f))
temp_f <- 98.6
temp_c <- fahrenheit_to_celsius(temp_f)
cat(sprintf("%g\u00B0F = %g\u00B0C\n", temp_f, temp_c))98.6°F = 37°C
function celsiusToFahrenheit(celsius) {
return (celsius * 9/5) + 32;
}
function fahrenheitToCelsius(fahrenheit) {
return (fahrenheit - 32) * 5/9;
}
// Example usage
const tempC = 25;
const tempF = celsiusToFahrenheit(tempC);
console.log(`${tempC} °C = ${tempF} °F`);
const bodyTempF = 98.6;
const bodyTempC = fahrenheitToCelsius(bodyTempF);
console.log(`${bodyTempF} °F = ${bodyTempC} °C`);98.6°F = 37°C
Further Reading
- The Research Scientist Pod Calculators - Discover a collection of calculators designed for statistical analysis, mathematics, and other advanced computations.
- Ideal Gas Law Calculator - Explore how temperature affects gas behavior with our comprehensive calculator and guide to the ideal gas law equation PV = nRT.
- Celsius Scale (Wikipedia) - Detailed history of the Celsius scale, its development by Anders Celsius, and its adoption as the standard temperature scale in most countries.
- Fahrenheit Scale (Wikipedia) - Comprehensive overview of the Fahrenheit scale's history, development by Daniel Fahrenheit, and its continued use in the United States.
- NOAA Temperature Conversion Guide - Official guide from the National Oceanic and Atmospheric Administration on temperature conversion methods and meteorological applications.
- NIST Guide to SI Units - Temperature - National Institute of Standards and Technology's authoritative guide on temperature measurement and SI units.
Attribution and Citation
If you found this guide and tools helpful, feel free to link back to this page or cite it in your work!
Suf is a senior advisor in data science with deep expertise in Natural Language Processing, Complex Networks, and Anomaly Detection. Formerly a postdoctoral research fellow, he applied advanced physics techniques to tackle real-world, data-heavy industry challenges. Before that, he was a particle physicist at the ATLAS Experiment of the Large Hadron Collider. Now, he’s focused on bringing more fun and curiosity to the world of science and research online.