Celsius to Fahrenheit Calculator: convert celsius to fahrenheit instantly. Full formula, unit table, and worked example.
°C to °F: °F = (°C × 9/5) + 32
°F to °C: °C = (°F − 32) × 5/9
°C to K: K = °C + 273.15
K to °C: °C = K − 273.15
Quick mental conversion: °F ≈ (°C × 2) + 30 (accurate within ~3°F for −10°C to 40°C range)