Temperature Converter Calculator

Temperature Conversion

Convert between Celsius (°C), Fahrenheit (°F), and Kelvin (K). Temperature scales measure thermal energy and are offset/scaled differently.

Formulas

• °F = °C × 9/5 + 32
• °C = (°F − 32) × 5/9
• K = °C + 273.15

Example

25 °C → 25 × 9/5 + 32 = 77 °F; 25 °C → 298.15 K.

FAQs

Absolute zero?
0 K ≈ −273.15 °C.

Room temperature?
≈ 20–25 °C.