Please provide values below to convert Celsius [°C] to Kelvin [K], or vice versa.
The Kelvin scale is an absolute temperature scale (starting from absolute zero), while Celsius is a relative scale based on the properties of water. To convert from degrees Celsius (°C) to Kelvin (K), you add 273.15 to the Celsius value.
The formula to convert degrees Celsius (°C) to Kelvin (K) is:
K = °C + 273.15
Where K is the temperature in Kelvin and °C is the temperature in degrees Celsius.
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ExamplesÂ
Convert -10°C (a cold winter day) to Kelvin.
K = -10 + 273.15 = 263.15 K
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Convert 0° Celsius (freezing point of water) to Kelvin
0 °C = 0 + 273.15 = 273.15 K
Convert 25° Celsius (room temperature) to Kelvin
25 °C = 25 + 273.15 = 298.15 K
Convert 100° Celsius (boiling point of water) to Kelvin
100 °C = 100 + 273.15 = 373.15 K
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Tip: If you need to convert in the other direction (Kelvin to Celsius), the formula is: °C = K - 273.15.
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Degree Celsius, also known as Celsius, is a temperature scale named after the Swedish astronomer Anders Celsius (1701-1744). Originally called the "centigrade" scale, it was later renamed to honor Celsius, who developed it.
On the Celsius scale, 0 °C is the freezing point of water, and 100 °C is the boiling point of water at standard atmospheric pressure. The Celsius scale is widely used in everyday applications, such as weather forecasting, cooking, and scientific research.Â
Anders Celsius originally defined the scale with 100 degrees between water's freezing and boiling points, but with the opposite orientation of the modern scale (i.e., 100 °C was the freezing point and 0 °C was the boiling point). However, after Celsius's death, other scientists reversed the scale to its current orientation, and it became widely adopted as a standard temperature scale.
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Kelvin (K) is the base unit of temperature in the International System of Units (SI). It is defined as the fraction 1/273.16 of the thermodynamic temperature of water's triple point. The Kelvin scale is an absolute temperature scale, meaning that it has a fixed zero point, which is absolute zero (0 K), the theoretical temperature at which all molecular motion ceases.
The Kelvin scale was named after the Irish physicist William Thomson (1824-1907), also known as Lord Kelvin, who developed the concept of absolute zero and the Kelvin scale in the mid-19th century. The Kelvin scale is widely used in scientific research, particularly in fields such as physics, chemistry, and engineering, where precise temperature measurements are critical.
Kelvin is the standard unit for scientific and technical applications worldwide, especially in fields like physics, chemistry, astronomy, and engineering. For example:
| Celsius (°C) | Kelvin (K) | Description |
|---|---|---|
| -273.15 °C | 0 K | absolute zero temperature |
| -50 °C | 223.15 K |  |
| -40 °C | 233.15 K |  |
| -30 °C | 243.15 K |  |
| -20 °C | 253.15 K |  |
| -10 °C | 263.15 K |  |
| 0 °C | 273.15 K | freezing/melting point of water |
| 10 °C | 283.15 K |  |
| 20 °C | 293.15 K |  |
| 21 °C | 294.15 K | room temperature |
| 30 °C | 303.15 K |  |
| 37 °C | 310.15 K | average body temperature |
| 40 °C | 313.15 K |  |
| 50 °C | 323.15 K |  |
| 60 °C | 333.15 K |  |
| 70 °C | 343.15 K |  |
| 80 °C | 353.15 K |  |
| 90 °C | 363.15 K |  |
| 100 °C | 373.15 K | boiling point of water |
| 200 °C | 473.15 K |  |
| 300 °C | 573.15 K |  |
| 400 °C | 673.15 K |  |
| 500 °C | 773.15 K |  |
| 600 °C | 873.15 K |  |
| 700 °C | 973.15 K |  |
| 800 °C | 1073.15 K |  |
| 900 °C | 1173.15 K |  |
| 1000 °C | 1273.15 K |  |
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Summary
Scale | Freezing Point of Water | Boiling Point of Water | Absolute Zero | Common Use |
Celsius (°C) | 0°C | 100°C | -273.15°C | Daily life, weather |
Kelvin (K) | 273.15 K | 373.15 K | 0 K | Scientific research |
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