38 Kelvin to Celsius
Quick answer
38 Kelvin (K) equals
-235.15 °C
To convert 38 kelvins to degrees Celsius, multiply by -272.15. Therefore, 38 Kelvin (K) equals -235.15 Celsius (°C).
Formula: °C = K - 273.15. Calculation: -235.15 °C. Reverse: K = °C + 273.15.
Convert Kelvin (K) to Celsius (°C) online with our free unit converter. Calculated using formula: °C = K - 273.15. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Kelvin to Celsius
- Step 1 — start with the formula. °C = K - 273.15
- Step 2 — substitute your figure. Apply the formula to 38 K.
- Step 3 — read the result. 38 K = -235.15 °C
- Step 4 — check it in reverse. K = °C + 273.15 returns 38 K, which matches the figure you started with.
Temperature Converter
5 units available
38 K = -235.15 °C
Formula:
°C = K - 273.15With your value: 38 K = -235.15 °C
Other Kelvin to Celsius conversions
Kelvin to Celsius Conversion Table
| Kelvin (K) | Celsius (°C) |
|---|---|
| 0.5 | -272.65 |
| 1 | -272.15 |
| 2 | -271.15 |
| 5 | -268.15 |
| 10 | -263.15 |
| 15 | -258.15 |
| 20 | -253.15 |
| 25 | -248.15 |
| 50 | -223.15 |
| 100 | -173.15 |
| 250 | -23.15 |
| 500 | 226.85 |
| 1000 | 726.85 |
Celsius to Kelvin Conversion Table
| Celsius (°C) | Kelvin (K) |
|---|---|
| 0.5 | 273.65 |
| 1 | 274.15 |
| 2 | 275.15 |
| 5 | 278.15 |
| 10 | 283.15 |
| 15 | 288.15 |
| 20 | 293.15 |
| 25 | 298.15 |
| 50 | 323.15 |
| 100 | 373.15 |
| 250 | 523.15 |
| 500 | 773.15 |
| 1000 | 1,273.15 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Kelvin (K)
Temperature
Traceable to the kelvin, defined by fixing the Boltzmann constant at 1.380 649 × 10⁻²³ J/K. Celsius and Fahrenheit are exact affine transforms of the kelvin scale.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Celsius (°C)
Temperature
t/°C = T/K − 273.15. The degree Celsius has exactly the same magnitude as the kelvin.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Standards and context behind Kelvin to Celsius
- Boltzmann constant
- Since 2019 the kelvin is defined by k = 1.380649 × 10⁻²³ J/K, no longer by the triple point of water.
- Absolute zero
- 0 K = −273.15 °C exactly.
How to Convert Kelvin to Celsius
This conversion uses an offset formula, so it cannot be described by a single multiplication factor.
Formula: °C = K - 273.15
Reverse: K = °C + 273.15
Step-by-Step Example
- Start with your value in Kelvin. For example: 5 K
- Apply °C = K - 273.15
- The result is: -268.15 °C
Kelvin and Celsius Relationship
Both Kelvin and Celsius belong to the Metric (SI) system, making this an intra-system conversion within temperature. Unlike simple multiplicative factors, this conversion follows an affine calculation model: °C = K - 273.15. Understanding the relationship between Kelvin and Celsius is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Kelvin
The Kelvin scale is the SI unit of temperature that starts at absolute zero (−273.15°C). It is used extensively in scientific research.
Fun Fact: At 0 Kelvin (absolute zero), all molecular motion stops. It has never been fully achieved in a laboratory.
Common uses of Kelvin: physics, astronomy, chemistry.
About Celsius
The Celsius scale sets 0°C as the freezing point and 100°C as the boiling point of water at standard pressure. It is used by most countries worldwide.
Fun Fact: Anders Celsius originally proposed a scale where 100° was freezing and 0° was boiling—it was later reversed!
Common uses of Celsius: weather, cooking, science.
Frequently Asked Questions
- What is 38 Kelvin in Celsius?
- 38 Kelvin equals -235.15 Celsius.
- How many degrees Celsius are in 1 Kelvin?
- There are exactly -272.15 degrees Celsius in 1 Kelvin.
- What is the formula to convert Kelvin to Celsius?
- The formula to convert Kelvin to Celsius is: °C = K - 273.15. For example, to convert 10 kelvins to degrees Celsius, you would apply the formula to 10.
- What is a Kelvin?
- The Kelvin scale is the SI unit of temperature that starts at absolute zero (−273.15°C). It is used extensively in scientific research.
- What is a Celsius?
- The Celsius scale sets 0°C as the freezing point and 100°C as the boiling point of water at standard pressure. It is used by most countries worldwide.
- What are the common uses of Kelvin?
- The Kelvin is commonly used in physics, astronomy, chemistry.
- Do you say "degrees Kelvin"?
- No. The SI unit is the kelvin (symbol K) with no degree sign — for example 300 K.
Related Temperature Conversions
Cite this page
UnitConvertLab. (2026). 38 Kelvin to Celsius. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/38-kelvin-to-celsius