Celsius Degree Symbol (°C)

What is °C?

The Celsius degree symbol (°C) represents degrees Celsius, a unit of temperature measurement named after Swedish astronomer Anders Celsius. It's the most widely used temperature scale worldwide, adopted as the international standard for scientific and everyday temperature measurements.

Historical Background

The Celsius scale was originally called "centigrade" until 1948, when it was officially renamed in honor of Anders Celsius. The scale is based on the freezing (0°C) and boiling (100°C) points of water at standard atmospheric pressure.

Common Uses:

• • Weather forecasts and meteorology
• • Scientific research and laboratory work
• • Cooking and baking recipes
• • Medical body temperature readings
• • Climate and environmental monitoring
• • International standards and regulations

Python

# Using Celsius symbol
temperature = 25.5
print(f"Temperature: {temperature}\u00B0C")

# Constants
CELSIUS_SYMBOL = "\u00B0C"
print(f"Water boils at 100{CELSIUS_SYMBOL}")

JavaScript

// Using Celsius symbol
const temperature = 25.5;
console.log(`Temperature: ${temperature}°C`);

// In HTML
document.getElementById('temp').innerHTML = '25°C';

HTML

<!-- HTML entities -->
<p>Temperature: 25&deg;C</p>
<p>Water boils at 100&#176;C</p>

<!-- Unicode -->
<p>Body temperature: 37°C</p>

CSS

/* CSS content property */
.temperature::after {
    content: "°C";
}

/* Unicode in class names */
.temp-celsius::before {
    content: "\00B0C";
}