Instant · Precise · Universal
6 units available
6 categories total
To Celsius: °C = Tₜ × 0.01. To Kelvin: K = Tₜ × 0.01 + 273.15.
1 Tₜ = 0.01 °C = 273.16 K. The triple point is a fixed thermodynamic state, not dependent on pressure corrections.
For example, 1 Triple Point of Water (Tₜ) = 0.01 Celsius (°C).
| Triple Point of Water (Tₜ) | Celsius (°C) |
|---|---|
| 0.1 | 0.001 |
| 0.5 | 0.005 |
| 1 | 0.01 |
| 2 | 0.02 |
| 5 | 0.05 |
| 10 | 0.1 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |
| 500 | 5 |
| 1000 | 10 |
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).
1 Tₜ = 0.01 °C = 273.16 K. The triple point is a fixed thermodynamic state, not dependent on pressure corrections.
To Celsius: °C = Tₜ × 0.01. To Kelvin: K = Tₜ × 0.01 + 273.15.
Calibrating precision thermometers, validating temperature measurement systems, and establishing traceability in national labs.
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.
Confusing the triple point (0.01 °C) with the normal freezing point (0 °C). The difference is tiny but critical in precision metrology.
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.
The degree Celsius is a unit of temperature on the Celsius scale, where 0 °C is the freezing point and 100 °C is the boiling point of water at standard atmospheric pressure.
°C = K − 273.15. The Celsius and Kelvin scales have identical degree sizes — they differ only by an offset of 273.15.
To Fahrenheit: °F = °C × 9/5 + 32. To Kelvin: K = °C + 273.15. To Rankine: °R = (°C + 273.15) × 9/5.
Weather reports, cooking temperatures, body temperature (37 °C normal), refrigerator settings (2–4 °C), and industrial processes.
−40 °C = −40 °F — the only point where Celsius and Fahrenheit scales intersect. The hottest recorded temperature on Earth was 56.7 °C in Death Valley.
Forgetting the °C × 9/5 + 32 offset when converting to Fahrenheit. Also, assuming 0 °C = 0 K (actually 0 °C = 273.15 K).
Key anchors: 0 °C = water freezes, 37 °C = body temp, 100 °C = water boils. For quick °C→°F: double and add 30 (approximate).



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