Calculator
How it works
Le tre scale di temperatura principali: il Kelvin (K) è la scala SI della temperatura termodinamica con lo zero assoluto come origine; il Celsius (°C) ha lo zero al punto di fusione del ghiaccio; il Fahrenheit (°F) è la scala anglosassone usata negli USA. Le scale sono collegate dalle formule lineari sopra indicate.
Assumptions and conditions
This calculation is valid under the following conditions:
- Scala di temperatura ITS-90
This calculation is valid when: Scala di temperatura ITS-90.
This is an informational calculation (unit conversion or physical definition). The margin of error is negligible if inputs are correct.
All inputs and outputs use SI units. Convert any values in other unit systems before entering them.
Limitations
This calculation does not apply in the following cases:
- Non applicabile sotto lo zero assoluto (−273.15°C = 0 K)
Non applicabile sotto lo zero assoluto (−273.15°C = 0 K)
Referenced standards
No specific standard (definitional formula or fundamental physical principle).
Formula source: Definizioni SI: T(K) = T(°C) + 273.15 (BIPM). T(°F) = T(°C) × 9/5 + 32 (NIST).
Application examples
Temperatura ambiente 20°C
Temperatura di comfort standard per ambienti interni
Punto di ebollizione dell'acqua 100°C
Temperatura di ebollizione dell'acqua a pressione atmosferica standard
Frequently asked questions
What does the Temperature Conversion calculator compute?
Convert temperatures between Celsius (°C), Kelvin (K), Fahrenheit (°F), and Rankine (°R). Exact conversion formulas per SI definitions.
When is this calculation valid?
This calculation is valid under the following conditions: Scala di temperatura ITS-90.
When is this calculator not appropriate?
Non applicabile sotto lo zero assoluto (−273.15°C = 0 K)
How accurate is the result?
This calculator implements the standard form of the formula. Accuracy depends on the quality of the inputs provided. Source: Definizioni SI: T(K) = T(°C) + 273.15 (BIPM). T(°F) = T(°C) × 9/5 + 32 (NIST)..
What is the source of the formula?
Definizioni SI: T(K) = T(°C) + 273.15 (BIPM). T(°F) = T(°C) × 9/5 + 32 (NIST).
Which parameter has the greatest influence on the result?
"Temperatura (°C)" is the most influential parameter: a 10% change in this input produces approximately 10% change in "Temperatura (°C)".
How does the result change under different conditions?
Comparison between "Reference conditions" and "Punto di ebollizione dell'acqua 100°C": Temperatura (K) [K]: increases by 27.3% (from 293.150 to 373.150). Temperatura (°F) [°F]: increases by 211.8% (from 68.000 to 212.000). Temperatura (°C) [°C]: increases by 400.0% (from 20.000 to 100.000).
Technical note
Punti di riferimento: 0°C = 273.15 K = 32°F (ghiaccio); 100°C = 373.15 K = 212°F (ebollizione acqua a 1 atm); 37°C ≈ 98.6°F (temperatura corporea).
Technical note
Lo zero assoluto: −273.15°C = 0 K = −459.67°F. Non è fisicamente raggiungibile.
Technical note
Per differenze di temperatura (ΔT): 1°C = 1 K = 1.8°F. Le differenze si convertono diversamente dai valori assoluti.
Technical deep dive
About this calculator
Convert temperatures between Celsius (°C), Kelvin (K), Fahrenheit (°F), and Rankine (°R). Exact conversion formulas per SI definitions.
Formula
K = °C + 273.15 | °F = °C × 9/5 + 32
Validity conditions
This calculation is valid under the following conditions:
- Scala di temperatura ITS-90
Result sensitivity
The result varies significantly with changes in the following parameters:
- Temperatura (°C) [°C]: linear sensitivity on "Temperatura (°C)" (proportional, elasticity 1.00).
When this calculator does not apply
- Non applicabile sotto lo zero assoluto (−273.15°C = 0 K)
Technical notes
- Punti di riferimento: 0°C = 273.15 K = 32°F (ghiaccio); 100°C = 373.15 K = 212°F (ebollizione acqua a 1 atm); 37°C ≈ 98.6°F (temperatura corporea).
- Lo zero assoluto: −273.15°C = 0 K = −459.67°F. Non è fisicamente raggiungibile.
- Per differenze di temperatura (ΔT): 1°C = 1 K = 1.8°F. Le differenze si convertono diversamente dai valori assoluti.
Technical analysis
Method: Convert temperatures between Celsius (°C), Kelvin (K), Fahrenheit (°F), and Rankine (°R). Exact conversion formulas per SI definitions.
Reference result: Temperatura (K): 293.150 K, Temperatura (°F): 68.000 °F.
Sensitivity analysis
Elasticity: percentage change in output relative to percentage change in input (1.0 = linear).
| Input | Primary output | Elasticity | Relationship |
|---|---|---|---|
| Temperatura (°C) [°C] | Temperatura (°C) | 1.00 | linear |
Note: The result is particularly sensitive to "Temperatura (°C)" [°C]: a 10% change produces approximately 10% change in "Temperatura (°C)".
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