Calchy.
Conversion - Celsius to Fahrenheit

What is 18°C in Fahrenheit?

Answer
64.4
°F
18 × 9/5 + 32 = 64.4 °F
How we got there
  1. 01Multiply by 9/5 (= 1.8): 18 × 1.8 = 32.4
  2. 02Add 32: 32.4 + 32 = 64.4 °F
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