celsius

Celsius is a temperature scale named after the Swedish astronomer Anders Celsius, who developed it in 1742. Temperatures on this scale are measured in degrees Celsius (°C). It fits neatly into the metric system and the SI, using increments that make scientific calculations and conversions straightforward (a change of 1°C is the same size as a change of 1 kelvin). The Celsius scale defines 0°C as the freezing point of water and 100°C as the boiling point at standard atmospheric pressure. This makes it a convenient and intuitive way to describe everyday temperatures.

While Fahrenheit is still commonly used in the United States, Celsius dominates most other parts of the world – particularly in science, meteorology (weather forecasting), and cooking. When you see a recipe calling for an oven temperature of 180°C, or hear a news report stating that the temperature will reach 40°C today, they're using the Celsius scale to communicate heat levels.

Understanding Celsius is crucial not just for daily life but also for interpreting scientific data and global trends. Climate scientists use Celsius to track changes in Earth's average temperature, and doctors worldwide rely on it to assess a patient's fever. Whether you're checking the weather, baking a cake, or studying climate change, Celsius provides a standardized way to measure and understand the world around us – one degree at a time.