To convert 40°C to Fahrenheit, use the formula F = (C × 9/5) + 32. So, 40 × 9/5 = 72, then 72 + 32 = 104. Therefore, 40°C equals 104°F. This conversion helps when comparing weather, cooking temperatures, or scientific measurements between metric and imperial systems.
Example 1: 40°C → (40 × 9/5) + 32 = 72 + 32 = 104°F.