Everyday tool
Temperature Converter
Use this free temperature converter for a clear, instant answer. Enter your numbers and the result updates immediately — no sign-up, everything private in your browser.
Use this free temperature converter for a clear, instant answer. Enter your numbers and the result updates immediately — no sign-up, everything private in your browser.
This tool converts between Celsius, Fahrenheit and Kelvin using standard linear relationships.
°F = °C × 9/5 + 32; °C = (°F − 32) × 5/9; K = °C + 273.15.
20°C equals 68°F and 293.15 K.
Converted values represent the same temperature in different scales.
Displayed results may be rounded. Kelvin cannot be below absolute zero, 0 K.
Method reference: NIST: SI temperature units. Fynzo explains and implements the calculation independently; the linked organization does not endorse this website.
Reviewed by: Yasser Chahir, Fynzo editor. Last reviewed: July 31, 2026.