Question

Which shows the formula for converting from degrees Celsius to degrees Fahrenheit?

°F = (9/5 × °C) +32
°F = 5/9 × (°C – 32)
°F = °C – 273
°F = °C + 273

Answer 1

The correct formula is:
°F = (9/5 × °C) + 32

Quick check: 0°C → (9/5·0)+32 = 32°F; 100°C → (9/5·100)+32 = 212°F.

Notes on the others:
- °F = 5/9 × (°C – 32) is incorrect (the correct inverse is °C = 5/9 × (°F – 32)).
- °F = °C − 273 and °F = °C + 273 confuse Celsius with Kelvin (K = °C + 273.15).