To convert 220 Celsius to Fahrenheit, we can use the formula (C × 9/5) + 32 = F. Plugging in 220 for C, we get:

(220 × 9/5) + 32 = F

Multiplying 220 by 9 and then dividing by 5, we get:

(220 × 9/5) = 396

Adding 32 to 396, we get:

396 + 32 = 428

Therefore, 220 Celsius is equal to 428 Fahrenheit.