Here's how to convert 140 degrees Celsius to Fahrenheit:

Formula:

* F = (C x 9/5) + 32

Where:

* F = Fahrenheit

* C = Celsius

Calculation:

1. Multiply Celsius by 9/5: 140 x 9/5 = 252

2. Add 32: 252 + 32 = 284

Therefore, 140 degrees Celsius is equal to 284 degrees Fahrenheit.