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Celsius Converter

Convert Celsius to Kelvin and more • 15 conversions

Result

0

1 0
Conversion Formula
1 = ---
Quick Reference
1 = 1
10 = 10
50 = 50
100 = 100
500 = 500
1000 = 1000

Unit Explanations

Celsius°C

Source Unit

Celsius, denoted by the symbol °C, is a scale and unit of measurement for temperature. It is named after the Swedish astronomer Anders Celsius, who developed a similar temperature scale. In the Celsius scale, the freezing point of water is 0 degrees, and the boiling point is 100 degrees under standard atmospheric pressure. This makes it especially useful for scientific calculations and everyday temperature measurements as it aligns closely with the metric system. The Celsius scale is widely used around the world, with the exception of some countries like the United States, which predominantly uses Fahrenheit.

°C = (°F - 32) × 5/9

Current Use

The Celsius scale is the most widely used temperature scale in the world today. It is used in most countries for daily temperature measurements. In scientific contexts, it is used alongside the Kelvin scale, which is the SI unit for temperature. The Celsius scale's straightforward alignment with the metric system makes it an ideal choice for educational, scientific, and meteorological purposes.

Fun Fact

The Celsius scale was initially reversed, with 0 as boiling point and 100 as freezing point.

KelvinK

Target Unit

The Kelvin (K) is the base unit of temperature in the International System of Units (SI). It is defined by taking the fixed numerical value of the Boltzmann constant, k, to be 1.380649×10^-23 when expressed in the unit J K^-1, which is equal to kg m^2 s^-2 K^-1. The Kelvin is used to measure thermodynamic temperature and is one of the seven SI base units. Unlike Celsius, the Kelvin scale is an absolute scale starting from absolute zero, the point at which all molecular motion ceases.

T(K) = T(°C) + 273.15

Current Use

The Kelvin is widely used in scientific research, particularly in physics and chemistry, where precise temperature measurements are crucial. It is also used in engineering applications and space sciences, due to its absolute nature. The Kelvin is vital in any field where temperature plays a critical role, from material science to cosmology.

Fun Fact

The Kelvin scale does not use degrees, unlike Celsius and Fahrenheit.

Decimals:
Scientific:OFF

Result

0

1
0
Conversion Formula
1 = ...
1→1
10→10
100→100
1000→1000

Convert Celsius to Kelvin (°C to K)

Convert Celsius (°C) to Kelvin (K). This is the bridge between everyday temperature and scientific reality. 0°C is the freezing point of water, but 273.15 K is that same point on the scale that starts at Absolute Zero.

Conversion Formula
K = °C + 273.15

Add 273.15 to Celsius. For example, 25°C (room temp) = 298.15 K.

IN

Celsius (°C)

Definition

Water freezes at 0°.

Origins & History

Anders Celsius.

Current Use: Global standard.
OUT

Kelvin (K)

Definition

SI unit of temperature.

Origins & History

Lord Kelvin.

Current Use: Science.

📐Conversion Formula

= × 1.00000

How to Convert

To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.

Quick Examples

1
=
1.000
10
=
10.00
100
=
100.0

💡 Pro Tip: For the reverse conversion (), divide by the conversion factor instead of multiplying.

°C

Celsius

temperatureNon-SI

Definition

Celsius, denoted by the symbol °C, is a scale and unit of measurement for temperature. It is named after the Swedish astronomer Anders Celsius, who developed a similar temperature scale. In the Celsius scale, the freezing point of water is 0 degrees, and the boiling point is 100 degrees under standard atmospheric pressure. This makes it especially useful for scientific calculations and everyday temperature measurements as it aligns closely with the metric system. The Celsius scale is widely used around the world, with the exception of some countries like the United States, which predominantly uses Fahrenheit.

History & Origin

The Celsius scale was developed by Swedish astronomer Anders Celsius in 1742. Originally, Celsius devised his scale with 0 as the boiling point of water and 100 as the freezing point, which was later inverted by Carl Linnaeus in 1744 to its current form. This scale quickly became popular due to its straightforward 100-degree interval between the key physical phenomena of freezing and boiling water, which made it intuitive and easy to use, particularly for scientific work.

Etymology: The term 'Celsius' comes from the surname of Anders Celsius, the inventor of this temperature scale.

1742: Anders Celsius introduces his ...1744: Carl Linnaeus inverts the Cels...1948: The name 'Celsius' is official...

Current Use

The Celsius scale is the most widely used temperature scale in the world today. It is used in most countries for daily temperature measurements. In scientific contexts, it is used alongside the Kelvin scale, which is the SI unit for temperature. The Celsius scale's straightforward alignment with the metric system makes it an ideal choice for educational, scientific, and meteorological purposes.

MeteorologyEducationHealthcareScience

💡 Fun Facts

  • The Celsius scale was initially reversed, with 0 as boiling point and 100 as freezing point.
  • Celsius is used by scientists worldwide, except in the U.S., where Fahrenheit is more common.
  • The Celsius scale is often called centigrade, a term derived from Latin meaning 'hundred steps'.

📏 Real-World Examples

0 °C
Freezing point of water
100 °C
Boiling point of water
37 °C
Average human body temperature
22 °C
Room temperature
4 °C
Refrigerator temperature

🔗 Related Units

Fahrenheit (°C = (°F - 32) × 5/9)Kelvin (K = °C + 273.15)Rankine (°R = (°C + 273.15) × 9/5)Réaumur (°Ré = °C × 0.8)
K

Kelvin

temperatureSI Unit

Base Unit

Definition

The Kelvin (K) is the base unit of temperature in the International System of Units (SI). It is defined by taking the fixed numerical value of the Boltzmann constant, k, to be 1.380649×10^-23 when expressed in the unit J K^-1, which is equal to kg m^2 s^-2 K^-1. The Kelvin is used to measure thermodynamic temperature and is one of the seven SI base units. Unlike Celsius, the Kelvin scale is an absolute scale starting from absolute zero, the point at which all molecular motion ceases.

History & Origin

The Kelvin scale was developed in the mid-19th century by Lord Kelvin, a prominent physicist, who proposed an absolute temperature scale independent of the properties of a particular substance. This concept of absolute zero provided a uniform scale for comparing temperatures, based on the laws of thermodynamics.

Etymology: Named after Lord Kelvin, born William Thomson, who was a physicist and engineer.

1954: Adopted as the SI base unit of...2019: Redefined in terms of the Bolt...

Current Use

The Kelvin is widely used in scientific research, particularly in physics and chemistry, where precise temperature measurements are crucial. It is also used in engineering applications and space sciences, due to its absolute nature. The Kelvin is vital in any field where temperature plays a critical role, from material science to cosmology.

Scientific researchEngineeringSpace sciences

💡 Fun Facts

  • The Kelvin scale does not use degrees, unlike Celsius and Fahrenheit.
  • Absolute zero, 0 K, is theoretically the lowest temperature possible.
  • The Kelvin scale is named after a person, unlike most other SI units.

📏 Real-World Examples

273.15 K
Freezing point of water
373.15 K
Boiling point of water
293.15 K
Room temperature
5778 K
Surface temperature of the Sun
0 K
Absolute zero

🔗 Related Units

Celsius (Offset by 273.15 from Kelvin.)Fahrenheit (Converted from Kelvin using a formula.)Rankine (Absolute temperature scale used in the US.)Joule (Related through the Boltzmann constant.)

Frequently Asked Questions

How do I convert to ?

To convert to , multiply your value by 1. For example, 10 equals 10 .

What is the formula for to conversion?

The formula is: = × 1. This conversion factor is based on international standards.

Is this to converter accurate?

Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.

Can I convert back to ?

Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.

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