What is 21 degrees c in f?

To convert 21 degrees Celsius to Fahrenheit, you can use the formula ( F = \frac{9}{5}C + 32 ). Plugging in the values, ( F = \frac{9}{5} \times 21 + 32 ), which equals 69.8 degrees Fahrenheit. Therefore, 21 degrees Celsius is approximately 69.8 degrees Fahrenheit.