Celsius to Fahrenheit
Convert degrees Celsius to Fahrenheit.
Convert Celsius to Fahrenheit instantly. Essential for understanding US weather forecasts, following American recipes, or setting an oven that only displays Fahrenheit.
Frequently asked questions
20°C equals 68°F. The formula is: °F = (°C × 9/5) + 32, so 20 × 1.8 + 32 = 68.
A pleasant summer day in the UK (22–25°C) corresponds to 72–77°F. Americans consider 75–80°F (24–27°C) ideal summer weather.
At −40 degrees. That is the only point where −40°C = −40°F — the sole intersection of the two scales.
Rule of thumb: double the °C and add 30. Example: 20°C × 2 + 30 = 70°F (exact: 68°F). The error is at most 2–3 degrees.