About temperature units
Temperature is typically measured in Celsius (C), Fahrenheit (F) or Kelvin (K). This converter supports conversions between these scales.
Quick overview
- Celsius (C) — water freezes at 0°C and boils at 100°C at sea level.
- Fahrenheit (F) — used mainly in the United States; water freezes at 32°F and boils at 212°F.
- Kelvin (K) — the SI base unit for temperature; 0 K is absolute zero. 0°C = 273.15 K.
How conversion works
- C → F: (°C × 9/5) + 32
- F → C: (°F − 32) × 5/9
- C → K: °C + 273.15
- K → C: K − 273.15
Use this tool to quickly switch between scales and compare values.