Difference Between
versus

Celsius vs. Kelvin: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Published on January 1, 2024
Celsius is a temperature scale with 0°C as water's freezing point and 100°C its boiling point, while Kelvin is an absolute scale starting at absolute zero (0 K).
Celsius vs. Kelvin

Key Differences

Celsius, denoted as '°C', is a temperature scale commonly used in daily life and scientific contexts. It is based on the properties of water, with 0°C representing the freezing point and 100°C the boiling point under standard atmospheric conditions. Kelvin, on the other hand, is an absolute temperature scale, symbolized as 'K'. It is primarily used in scientific research and defines absolute zero, where molecular motion stops, as 0 K.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024
The Celsius scale is part of the metric system and is widely used for everyday temperature measurements in most of the world. It was named after the astronomer Anders Celsius. Kelvin, named after the physicist Lord Kelvin, is one of the seven base units in the International System of Units (SI) and is pivotal in thermodynamics and physics.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024
When converting temperatures, the Celsius scale requires adding or subtracting values to shift to other scales like Fahrenheit. Kelvin, in contrast, is directly related to the Celsius scale, with a simple conversion: K=°C+273.15. This reflects the absolute nature of the Kelvin scale, where each unit increment equals one degree Celsius.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024
In terms of usage, Celsius is more commonly encountered in weather forecasts, cooking, and general temperature references. Kelvin is used in scientific calculations involving physical constants, such as the Boltzmann constant, and in studies where absolute zero plays a role, like low-temperature physics.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024
Technically, the term 'degrees' is not used with Kelvin. It's simply 'kelvins'. In Celsius, temperatures are expressed in 'degrees Celsius'. This linguistic distinction underscores Kelvin's status as an absolute measure of thermal energy, while Celsius is a relative measure based on a specific physical condition (water's phase change points).
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024
ADVERTISEMENT

Comparison Chart

Unit Name Origin

Named after Anders Celsius, a Swedish astronomer.
Named after Lord Kelvin, a British physicist.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Scale Type

Relative scale based on water's freezing and boiling points.
Absolute temperature scale starting at absolute zero.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Unit Symbol

Denoted as '°C'.
Denoted as 'K'.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Usage Context

Common in daily life, weather reporting, and non-scientific contexts.
Used in scientific research, especially in physics and thermodynamics.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Conversion to Kelvin

K=°C+273.15
Kelvin is the base unit; no conversion necessary for its own scale.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024
ADVERTISEMENT

Celsius and Kelvin Definitions

Celsius

Celsius is a metric temperature scale with water's freezing point at 0°C.
The room temperature was a comfortable 20°C.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Kelvin

Kelvin, symbolized as 'K', is one of the SI base units.
The Boltzmann constant is expressed in joules per Kelvin.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Celsius

Celsius is often used in everyday contexts like cooking and ambient temperature measurement.
The recipe called for the oven to be preheated to 180°C.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Kelvin

Kelvin is an absolute temperature scale used in scientific research.
At 0 Kelvin, also known as absolute zero, all molecular motion stops.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Celsius

Celsius, denoted as '°C', is widely used in international weather forecasting.
The forecast predicted a high of 28°C for the day.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023
ADVERTISEMENT

Kelvin

Kelvin unit is used without the word 'degree'.
Water boils at about 373 Kelvin under standard conditions.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Celsius

Celsius scale is pivotal in scientific studies involving temperature, except for absolute thermodynamic calculations.
In her experiment, she heated the solution to 75°C.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Kelvin

Kelvin scale begins at absolute zero, unlike Celsius or Fahrenheit.
The temperature of outer space is about 2.7 Kelvin.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Celsius

Celsius is a relative temperature scale, easily convertible to Fahrenheit.
To convert 30°C to Fahrenheit, double it and add 30, making it approximately 90°F.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Kelvin

Kelvin is crucial in studies involving extreme temperatures, like those in astrophysics and cryogenics.
Scientists achieved a temperature close to 1 millikelvin in their lab.
Shumaila Saeed
Shumaila Saeed
Dec 20, 2023

Celsius

Of or relating to a temperature scale that registers the freezing point of water as 0° and the boiling point as 100° under normal atmospheric pressure. See Table at measurement.
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

A unit of absolute temperature equal to 1/273.16 of the absolute temperature of the triple point of water. One kelvin degree is equal to one Celsius degree. See Table at measurement.
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Celsius

Alternative case form of Celsius
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

Kelvin A temperature scale in which zero occurs at absolute zero and each degree equals one kelvin. Water freezes at 273.15 K and boils at 373.15 K.
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Celsius

The Celsius thermometer or scale, so called from Anders Celsius, a Swedish astronomer, who invented it. It is the same as the centigrade thermometer or scale.
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

In the International System of Units, the base unit of thermodynamic temperature; 273.16 of the thermodynamic temperature of the triple point of water. Shown as "K".
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Celsius

Swedish astronomer who devised the centigrade thermometer (1701-1744)
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

A unit interval on the Kelvin scale.
The interval between the freezing and boiling points of water is 100 kelvins.
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

(usually as postpositioned adjective) A unit for a specific temperature on the Kelvin scale.
Ice melts above 273.15 kelvins.
Water boils above 373.15 kelvins.
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

The SI unit of temperature, defined as being 1/273.16 of the triple point of water; abbreviated K. The melting point of water at 760 mm pressure is 273.15 Kelvins, and the boiling point 373.15 Kelvins. One degree Kelvin is equal to one degree Centigrade, and
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

The basic unit of thermodynamic temperature adopted under the Systeme International d'Unites
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Kelvin

British physicist who invented the Kelvin scale of temperature and pioneered undersea telegraphy (1824-1907)
Shumaila Saeed
Shumaila Saeed
Dec 13, 2023

Repeatedly Asked Queries

What is Celsius?

Celsius is a temperature scale where 0°C is water's freezing point and 100°C is its boiling point.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Is Celsius used worldwide?

Celsius is widely used worldwide, except in the United States, where Fahrenheit is more common.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Who invented the Celsius scale?

The Celsius scale was developed by Anders Celsius, a Swedish astronomer.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

What is Kelvin?

Kelvin is an absolute temperature scale used in science, starting at absolute zero.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Who named the Kelvin scale?

The Kelvin scale is named after Lord Kelvin, a British physicist.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Can Celsius be negative?

Yes, Celsius can be negative, typically in extremely cold temperatures.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Does Kelvin have negative values?

No, Kelvin does not have negative values as it starts from absolute zero.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Is Celsius part of the metric system?

Yes, Celsius is a part of the metric system.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Why don't we use degrees with Kelvin?

Kelvin is an absolute scale, so the term 'degrees' is not used, to distinguish it from relative scales like Celsius.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

How do you convert Celsius to Fahrenheit?

Convert Celsius to Fahrenheit by multiplying by 1.8 (or 9/5) and adding 32.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

What is the significance of 0°C?

0°C is significant as it's the freezing point of water under standard conditions.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Why is Kelvin important in science?

Kelvin is important for scientific accuracy, especially in thermodynamics and physics.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Why is Celsius popular in daily use?

Celsius is popular in daily use due to its relevance to everyday temperature experiences.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

What's the boiling point of water in Kelvin?

The boiling point of water in Kelvin is approximately 373 K.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Can Celsius and Kelvin be equal?

Celsius and Kelvin values can never be equal because of their different starting points.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

How do daily temperatures relate to Kelvin?

Daily temperatures are rarely expressed in Kelvin, as it is a scale more suited for scientific measurements.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Is Kelvin used in weather reporting?

No, Kelvin is not typically used in weather reporting; Celsius or Fahrenheit are used instead.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Why is Kelvin zero called absolute zero?

Kelvin zero is called absolute zero because it's theoretically the lowest possible temperature, where molecular motion ceases.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Is Kelvin only for scientific use?

Primarily, Kelvin is used in scientific contexts, though it has some industrial applications.
Shumaila Saeed
Shumaila Saeed
Jan 01, 2024

Share this page

Link for your blog / website
HTML
Link to share via messenger
About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

Popular Comparisons

Trending Comparisons

LTE vs. CDMALTE vs. CDMA
Shumaila SaeedShumaila Saeed
February 4, 2024
LTE (Long Term Evolution) is a 4G wireless communication standard with high-speed data transfer, while CDMA (Code Division Multiple Access) is an older 2G/3G technology for mobile networks.
Moms vs. Mom'sMoms vs. Mom’s
Shumaila SaeedShumaila Saeed
February 22, 2024
"Moms" is the plural form of "mom," referring to multiple mothers, while "Mom's" is the possessive form of "mom," indicating something belongs to or is related to a mother.
Japanese Eyes vs. Chinese EyesJapanese Eyes vs. Chinese Eyes
Shumaila SaeedShumaila Saeed
December 25, 2023
Japanese Eyes and Chinese Eyes refer to linguistic structures in Japanese and Chinese respectively, each reflecting unique aspects of grammar and syntax.
Nike Air Force 1 LE vs. Nike Air Force 1 '07Nike Air Force 1 LE vs. Nike Air Force 1 ’07
Hifza NasirHifza Nasir
April 16, 2024
Nike Air Force 1 LE often represents limited edition releases with unique designs, while Nike Air Force 1 '07 is a modern version of the classic, maintaining the iconic style with updated materials.
Gorilla Glass vs. Panda GlassGorilla Glass vs. Panda Glass
Shumaila SaeedShumaila Saeed
January 5, 2024
Gorilla Glass is a highly durable, scratch-resistant glass used in electronic devices, while Panda Glass is a similar protective glass known for its high transparency and toughness.
Goth vs. AltGoth vs. Alt
Shumaila SaeedShumaila Saeed
February 5, 2024
Goth is a dark, often Victorian-influenced subculture and style, while Alt (alternative) is a broader term encompassing non-mainstream styles and attitudes.
Smart TV vs. Android TVSmart TV vs. Android TV
Shumaila SaeedShumaila Saeed
December 25, 2023
A Smart TV is an internet-connected television with a variety of apps, while an Android TV is specifically a Smart TV powered by Google's Android TV operating system.
Gorilla Glass 3 vs. Gorilla Glass 5Gorilla Glass 3 vs. Gorilla Glass 5
Shumaila SaeedShumaila Saeed
January 1, 2024
Gorilla Glass 3 offers improved scratch resistance and durability compared to its predecessors, while Gorilla Glass 5 focuses on enhanced drop protection and toughness.
2 Pole Motors vs. 4 Pole Motors2 Pole Motors vs. 4 Pole Motors
Shumaila SaeedShumaila Saeed
December 25, 2023
2 Pole Motors have one pair of magnetic poles and run at higher speeds, while 4 Pole Motors have two pairs of poles and operate at lower speeds, offering higher torque.
Benzyl Chloride vs. Benzoyl ChlorideBenzyl Chloride vs. Benzoyl Chloride
Shumaila SaeedShumaila Saeed
January 3, 2024
Benzyl Chloride is a chlorinated aromatic hydrocarbon used in organic synthesis, while Benzoyl Chloride is an acyl chloride used as a reagent in chemistry.
Payment vs. RemittancePayment vs. Remittance
Dua FatimaDua Fatima
April 9, 2024
Payment is a transfer of money for goods or services, while remittance involves sending money to a distant location, often overseas.
Manual Filing vs. E-FilingManual Filing vs. E-Filing
Shumaila SaeedShumaila Saeed
January 21, 2024
Manual Filing involves physically submitting documents, often in paper form. E-Filing is the process of submitting documents electronically, often through dedicated platforms or email.
Tap Root vs. Fibrous RootTap Root vs. Fibrous Root
Shumaila SaeedShumaila Saeed
February 28, 2024
Tap root is a single, thick primary root growing vertically downward, while fibrous root is a network of many thin roots spreading out near the surface.
Catapult vs. TrebuchetCatapult vs. Trebuchet
Shumaila SaeedShumaila Saeed
January 4, 2024
A catapult is a ballistic device using tension or torsion to launch projectiles, while a trebuchet is a type of catapult using a counterweight for greater force and distance.
Slavic Facial Features vs. Germanic Facial FeaturesSlavic Facial Features vs. Germanic Facial Features
Shumaila SaeedShumaila Saeed
January 31, 2024
Slavic facial features often include high cheekbones and rounder faces, while Germanic facial features typically have sharper angles and stronger jawlines.
White Collar Crime vs. Blue Collar CrimeWhite Collar Crime vs. Blue Collar Crime
Shumaila SaeedShumaila Saeed
December 25, 2023
White Collar Crime involves non-violent, financially motivated offenses often committed by professionals, while Blue Collar Crime refers to physical or violent crimes often by manual laborers.
Hard Copy vs. Soft CopyHard Copy vs. Soft Copy
Shumaila SaeedShumaila Saeed
December 25, 2023
A Hard Copy is a physical version of a document or file, usually on paper, while a Soft Copy is a digital version of the document, stored electronically.
Seagate Exos x16 vs. Seagate Exos x18Seagate Exos x16 vs. Seagate Exos x18
Shumaila SaeedShumaila Saeed
February 8, 2024
The Seagate Exos X16 offers up to 16TB storage with a focus on high-capacity data centers, while the Exos X18 upgrades to 18TB, enhancing performance and capacity for enterprise demands.
Social Change vs. Cultural ChangeSocial Change vs. Cultural Change
Shumaila SaeedShumaila Saeed
December 25, 2023
Social change refers to shifts in societal structures and institutions, impacting behaviors and relationships among people. Cultural change pertains to alterations in a group's shared beliefs, values, and customs, influencing their way of life.
Login vs. LogonLogin vs. Logon
Shumaila SaeedShumaila Saeed
December 25, 2023
"Login" and "Logon" are often used interchangeably to describe the process of gaining access to a computer system, but "login" can also refer to the credentials used for access.
Pycharm Community vs. Pycharm ProPycharm Community vs. Pycharm Pro
Shumaila SaeedShumaila Saeed
February 4, 2024
PyCharm Community is a free, open-source IDE for Python development, while PyCharm Pro is a paid version with additional advanced features like web development support and database tools.
Game vs. SportGame vs. Sport
Shumaila SaeedShumaila Saeed
December 25, 2023
A game is a structured form of play, often for entertainment, while a sport is a physical activity with competitive, skill-based, and rule-governed play, often recognized institutionally.
Inox vs. Stainless SteelInox vs. Stainless Steel
Shumaila SaeedShumaila Saeed
January 10, 2024
Inox is a synonym for stainless steel, used mainly in Europe, while stainless steel is a corrosion-resistant alloy containing chromium.
Assemble vs. BuildAssemble vs. Build
Shumaila SaeedShumaila Saeed
December 25, 2023
Assemble refers to the act of gathering and organizing pre-existing components, while build involves the creation of something new by combining various materials or elements.

Featured Comparisons

New Comparisons