Celsius Degrees Calculator
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Reviewed by Calculator Editorial Team
The Celsius scale is a temperature scale used by the International System of Units (SI). It is based on the freezing point of water at 0°C and the boiling point at 100°C at standard atmospheric pressure. This calculator helps you convert between Celsius and other temperature scales with precision.
What is Celsius?
The Celsius scale, also known as the centigrade scale, is one of the most commonly used temperature scales in the world. It was developed by Swedish astronomer Anders Celsius in 1742. The Celsius scale is part of the metric system and is widely used in scientific and everyday contexts.
The Celsius scale is defined by two fixed points: the freezing point of water at 0°C and the boiling point of water at 100°C at standard atmospheric pressure (1 atmosphere or 101.325 kPa). This makes it a practical scale for measuring temperature changes.
Key Facts
- 0°C is the freezing point of water
- 100°C is the boiling point of water
- Each degree represents a 1°C change in temperature
- Used in most countries for weather reporting
- Part of the International System of Units (SI)
Conversion Formulas
Celsius can be converted to other temperature scales using specific formulas. Here are the most common conversions:
These formulas are essential for accurate temperature conversions. The Celsius to Fahrenheit conversion is particularly important for weather reporting in countries that use the Fahrenheit scale.
How to Use This Calculator
Using this Celsius degrees calculator is simple. Follow these steps:
- Enter the temperature value in the input field
- Select the original temperature scale (Celsius, Fahrenheit, or Kelvin)
- Select the target temperature scale you want to convert to
- Click the "Calculate" button
- View the converted temperature in the result section
The calculator will display the converted temperature along with a visual representation of the conversion on the chart.
Common Conversions
Here are some common temperature conversions using the Celsius scale:
| Celsius (°C) | Fahrenheit (°F) | Kelvin (K) | Description |
|---|---|---|---|
| 0 | 32 | 273.15 | Freezing point of water |
| 10 | 50 | 283.15 | Cool temperature |
| 20 | 68 | 293.15 | Room temperature |
| 37 | 98.6 | 310.15 | Average human body temperature |
| 100 | 212 | 373.15 | Boiling point of water |
This table provides quick reference points for common temperature conversions. Understanding these values can help you interpret temperature readings in different contexts.
Frequently Asked Questions
What is the difference between Celsius and Fahrenheit?
The Celsius scale is based on the freezing point of water at 0°C and the boiling point at 100°C, with each degree representing a 1°C change. The Fahrenheit scale, used primarily in the United States, has a freezing point of 32°F and a boiling point of 212°F, with each degree representing a 1°F change. This means the Celsius scale has a smaller degree size than the Fahrenheit scale.
How do I convert Celsius to Fahrenheit?
To convert Celsius to Fahrenheit, use the formula: °F = (°C × 9/5) + 32. For example, 20°C is equivalent to 68°F. This formula accounts for the different degree sizes between the two scales.
What is the Kelvin scale and how does it relate to Celsius?
The Kelvin scale is an absolute temperature scale used in scientific contexts. It starts at absolute zero (-273.15°C) and has the same degree size as Celsius. To convert Celsius to Kelvin, use the formula: K = °C + 273.15. For example, 0°C is equivalent to 273.15 K.
Why is the Celsius scale important?
The Celsius scale is important because it is part of the International System of Units (SI) and is widely used in scientific research, weather reporting, and everyday contexts. Its definition based on the properties of water makes it a practical and reliable scale for measuring temperature.