Utility Tools
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly. Edit any field and all others update automatically.
°C
Celsius
°F
Fahrenheit
K
Kelvin
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Temperature Conversion Formulas
Temperature scales differ in their zero points and degree sizes. Our Temperature Converter handles all conversions automatically using the exact scientific formulas.
- Celsius to Fahrenheit: °F = (°C × 9/5) + 32
- Fahrenheit to Celsius: °C = (°F − 32) × 5/9
- Celsius to Kelvin: K = °C + 273.15
- Kelvin to Celsius: °C = K − 273.15
Key Reference Points
| Reference Point | Celsius | Fahrenheit | Kelvin |
|---|---|---|---|
| Absolute zero | −273.15°C | −459.67°F | 0 K |
| Water freezes | 0°C | 32°F | 273.15 K |
| Human body temp | 37°C | 98.6°F | 310.15 K |
| Water boils | 100°C | 212°F | 373.15 K |
Frequently Asked Questions
Absolute Zero (0 Kelvin or -273.15°C) is the violent floor of physics, defining the exact moment where thermodynamic internal atomic motion physically ceases entirely. Global mechanics dictate that no localized physical temperature can cascade beneath this node.
Kelvin is conceptually built as an absolute scale of pure thermodynamic sequence, not a relative comparative degree like Celsius or Fahrenheit. Therefore, the scientific nomenclature demands it structurally stand as a raw unit (K).
Yes. Due to their vastly divergent scaling architectures, the two linear tracks cross exactly at -40°. Therefore, -40° Celsius and -40° Fahrenheit represent the absolute precise identical thermodynamic internal state.