Kelvin to Triple Point of Water Converter
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6 units available
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How to Convert Kelvin to Triple Point of Water
To Celsius: °C = K − 273.15. To Fahrenheit: °F = (K − 273.15) × 9/5 + 32. To Rankine: °R = K × 9/5.
K = °C + 273.15. The kelvin scale starts at absolute zero (0 K = −273.15 °C). Same degree size as Celsius.
For example, 1 Kelvin (K) = -27215 Triple Point of Water (Tₜ).
Kelvin to Triple Point of Water — Common Values
| Kelvin (K) | Triple Point of Water (Tₜ) |
|---|---|
| 0.1 | -27305 |
| 0.5 | -27265 |
| 1 | -27215 |
| 2 | -27115 |
| 5 | -26815 |
| 10 | -26315 |
| 25 | -24815 |
| 50 | -22315 |
| 100 | -17315 |
| 500 | 22685 |
| 1000 | 72685 |
About Kelvin (K)
Definition
The kelvin is the SI base unit of thermodynamic temperature, defined by fixing the Boltzmann constant at exactly 1.380649 × 10⁻²³ J/K. Zero kelvin (0 K) is absolute zero.
Mathematical Relationship
K = °C + 273.15. The kelvin scale starts at absolute zero (0 K = −273.15 °C). Same degree size as Celsius.
Conversion Formula
To Celsius: °C = K − 273.15. To Fahrenheit: °F = (K − 273.15) × 9/5 + 32. To Rankine: °R = K × 9/5.
Practical Applications
Color temperature of lights (e.g., 2700 K warm white, 6500 K daylight), cryogenics, and engineering thermodynamics.
Interesting Facts
The cosmic microwave background radiation has a temperature of 2.725 K. The surface of the Sun is about 5,778 K. Absolute zero has never been fully reached.
Common Mistakes
Writing '°K' instead of 'K' — kelvin never uses a degree sign. Also, confusing 0 K with 0 °C.
Educational Tips
Kelvin = Celsius + 273.15. There are no negative kelvins (in classical physics). Absolute zero (0 K) is the theoretical minimum temperature.
About Triple Point of Water (Tₜ)
Definition
A unit based on the triple point of water — the unique temperature and pressure at which water coexists as solid, liquid, and gas simultaneously (0.01 °C / 273.16 K).
Mathematical Relationship
1 Tₜ = 0.01 °C = 273.16 K. The triple point is a fixed thermodynamic state, not dependent on pressure corrections.
Conversion Formula
To Celsius: °C = Tₜ × 0.01. To Kelvin: K = Tₜ × 0.01 + 273.15.
Practical Applications
Calibrating precision thermometers, validating temperature measurement systems, and establishing traceability in national labs.
Interesting Facts
The triple point of water requires extreme purity — even tiny impurities shift the temperature. It occurs at 611.657 Pa pressure, much lower than atmospheric.
Common Mistakes
Confusing the triple point (0.01 °C) with the normal freezing point (0 °C). The difference is tiny but critical in precision metrology.
Educational Tips
The triple point is where all three phases coexist. It's a unique, reproducible temperature — that's why it was perfect for defining the kelvin.