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21°C = 69.8°F

Use the formula F = 9/5C + 32

To convert from Celsius to Fahrenheit, multiply the number by 9, divide by 5, and add 32.

In this instance, 21 x 9 = 189 / 5 = 37.8 + 32 = 69.8.

Therefore, 21 degrees Celsius is equal to 69.8 degrees Fahrenheit.
69.8 F

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8y ago
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Martha Lois Wright

Lvl 1
5mo ago
21degree F. is not 21degree C. Not everybody is good in math.
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Wiki User

15y ago

-5.8 degrees Fahrenheit.

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Wiki User

14y ago

Approximately -29.4 degrees Celsius.

The relationship between temperature in Fahrenheit and temperature in Celsius is given by:

C=(5/9)*(F-32), where C is the temperature in degrees Celsius and F is the temperature in degrees Fahrenheit. Plugging -21 in for F yields:

C=(5/9)*(-53), or approximately -29.4

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Wiki User

14y ago

Start by taking the number in Celsius and multiply it by 9. Then divide that number by 5, and then add 32. This is how you convert Celsius to Fahrenheit or use the equation F = (9/5)C + 32
In this case, the answer is about 69.8 degrees Fahrenheit.

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Wiki User

10y ago

21 degrees Fahrenheit = -6.1 degrees Celsius.

Formula: [°C] = ([°F] − 32) × 5⁄9

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Wiki User

14y ago

21 degrees Celsius = 69.8 degrees Fahrenheit

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14y ago
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Wiki User

15y ago

roughly -7 degrees celsius

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Wiki User

14y ago

21 deg C = 69.8 deg F

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Wiki User

11y ago

69.8 oF

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Q: What is 21 degrees Fahrenheit in Celsius?
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