Celsius to Kelvin Converter

Relationship Between Celsius and Kelvin

The conversion between Celsius and Kelvin is based on the exact relationship where 1 degree Celsius equals 1 degree Kelvin with a fixed offset of 273.15.

K = °C + 273.15

Therefore,

1°C = 274.15 K

To convert Celsius to Kelvin, we simply add 273.15 to the Celsius value.

For example, 0°C equals 273.15 K (freezing point of water), 100°C equals 373.15 K (boiling point of water), and -273.15°C equals 0 K (absolute zero).

Note: Kelvin is an absolute temperature scale with no negative values, where 0 K represents absolute zero, the lowest possible temperature.

About Celsius

The Celsius scale, also known as the centigrade scale, is a temperature scale used worldwide for most temperature measurements.

Definition:

The Celsius scale is based on the freezing and boiling points of water at standard atmospheric pressure.

Key Reference Points:

• 0°C = Freezing point of water
• 100°C = Boiling point of water
• 37°C = Normal human body temperature
• 20°C = Room temperature
• -273.15°C = Absolute zero

Scale Characteristics:

• 100-degree interval between freezing and boiling water
• Positive values above freezing
• Negative values below freezing
• Decimal precision for accurate measurements

About Kelvin

The Kelvin scale is an absolute temperature scale used primarily in scientific and engineering applications, where 0 K represents absolute zero.

Definition:

The Kelvin scale is an absolute temperature scale based on the thermodynamic temperature scale, where 0 K represents absolute zero, the point at which all molecular motion ceases.

Key Reference Points:

• 0 K = Absolute zero (no molecular motion)
• 273.15 K = Freezing point of water (0°C)
• 373.15 K = Boiling point of water (100°C)
• 310.15 K = Normal human body temperature (37°C)
• 293.15 K = Room temperature (20°C)

Scale Characteristics:

• Absolute temperature scale with no negative values
• Same degree size as Celsius (1 K = 1°C)
• Widely used in scientific calculations
• SI base unit for temperature

Historical Background:

• Named after William Thomson, 1st Baron Kelvin
• Developed in the 19th century
• Based on the second law of thermodynamics
• Essential for scientific and engineering calculations

Scientific Applications:

• Physics and chemistry research
• Thermodynamic calculations
• Cryogenics and low-temperature physics
• Weather and climate science
• Astronomy and astrophysics

Celsius to Kelvin Conversion Table

The conversion of Celsius to Kelvin for certain values is provided below: