Convert Celsius ↔ Fahrenheit
Convert temperatures between Celsius and Fahrenheit instantly. Includes common reference points and formulas.
The Conversion Formulas
Celsius to Fahrenheit: °F = °C × 9/5 + 32. Fahrenheit to Celsius: °C = (°F - 32) × 5/9. Key reference points: 0°C = 32°F (water freezes), 100°C = 212°F (water boils), 37°C = 98.6°F (body temperature), -40°C = -40°F (the only point where both scales are equal).
Quick Mental Math
For a rough conversion: C to F: double the Celsius and add 30. 20°C → 40+30 = 70°F (actual: 68°F, close enough). F to C: subtract 30, then halve. 80°F → 50/2 = 25°C (actual: 26.7°C). These approximations are within 2-3 degrees for everyday temperatures.
Temperature conversion is searched 50K+ times per month year-round, with spikes during weather events and travel season. It is a utility page that earns repeat visitors — people bookmark and return.
