Celsius to Kelvin
Effortlessly convert Celsius to Kelvin with our precise and easy-to-use tool. Ideal for scientists, students, and anyone needing accurate conversions. Get reliable results instantly—no complex formulas required!
Celsius to Kelvin conversion: Add 273.15 to the value in Celsius.
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Celsius (°C) is a temperature scale that is widely used around the world, particularly in scientific, educational, and everyday contexts. It is part of the metric system and is based on the freezing and boiling points of water. On the Celsius scale, water freezes at 0°C and boils at 100°C under standard atmospheric pressure. The unit is denoted by the symbol °C. The Celsius scale was introduced in 1742 by Swedish astronomer Anders Celsius. Originally, Celsius designed the scale with 0°C as the boiling point of water and 100°C as its freezing point. This arrangement was later reversed to the format we use today. The scale’s alignment with the metric system has made it the preferred choice in most countries and scientific applications. Celsius is the standard temperature measurement system in most parts of the world, except in the United States and a few other regions where Fahrenheit is commonly used. It is integral in weather forecasts, medical settings, cooking instructions, and scientific calculations. The logical 100-point division between freezing and boiling makes it especially suitable for everyday use and scientific work. Kelvin (K) is the base unit of temperature in the International System of Units (SI). It measures thermodynamic temperature and starts from absolute zero, the point at which molecular motion theoretically ceases. Unlike Celsius or Fahrenheit, Kelvin does not use a degree symbol (°). The scale is directly linked to the Celsius scale, where 0°C corresponds to 273.15 K. The Kelvin scale was developed in the mid-19th century by physicist William Thomson, later known as Lord Kelvin. It was designed to create an absolute temperature scale based on thermodynamic principles, with absolute zero (0 K) as the starting point. Kelvin’s work provided a critical foundation for advancements in thermodynamics and physical sciences. Kelvin is used almost exclusively in scientific and engineering fields, especially in physics, chemistry, and astronomy. Its absolute nature makes it ideal for calculations involving energy, entropy, and other thermodynamic properties. Kelvin is also widely used in global scientific collaborations and research. To convert Celsius (°C) to Kelvin (K), use the following formula: [ K = \text{°C} + 273.15 ] This formula reflects the direct relationship between the Celsius and Kelvin scales. Start with the formula: [ K = \text{°C} + 273.15 ] Add 273.15 to the Celsius value: [ 25 + 273.15 = 298.15 ] Result: 25°C equals 298.15 K. Celsius: 0°C Conversion: [ K = 0 + 273.15 = 273.15 K ] Result: 0°C equals 273.15 K, which represents the freezing point of water. Celsius: 100°C Conversion: [ K = 100 + 273.15 ] [ K = 373.15 K ] Result: 100°C equals 373.15 K, which represents the boiling point of water.Celsius
Definition
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Kelvin
Definition
History/Origin
Current Use
Conversion Details
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Step-by-Step Conversion Instructions
Example: Convert 25°C to Kelvin
Practical Examples
Example 1: Freezing Point of Water
Example 2: Boiling Point of Water
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To convert Celsius to Kelvin, add 273.15 to the Celsius value. For example, 25°C + 273.15 = 298.15 K.
