How much Celsius is -3 Fahrenheit?

Answer 1

Start by taking the number in Fahrenheit and subtracting 32. Then divide the number by 9, and then multiply it by 5. This is how you convert Fahrenheit to Celsius or use the equation C = (F - 32) × 5/9

In this case, the answer is about -19.44 degrees Celsius.

Using a calculator (who doesn't have one these days?) there is a very simple formula to convert Celsius to Fahrenheit and back again.

Convert C to F:

C x 1.8 + 32 = F

Example

10C to 50F

10 x 1.8 = 18, then + 32 = 50

10 multiply 1.8 equals 18 plus 32 equals 50

Convert F to C

F - 32 / 1.8 = C

Example

50F to 10C

50 - 32 =18, then divide by 1.8 = 10

50 minus 32 equals 18 divide by 1.8 equals 10

When converting temps below zero, you must begin with the negative number in the calculator and employ the formula from that point.

Example

-15C to +5F

0 - 15 = -15 x 1.8 = -27 + 32 = +5

Most calculators require the 0 minus 15 and then equal to get the negative starting point. So:

-15 mulitply 1.8 equals -27 plus 32 equals +5

Reverting it is easy:

5 minus 32 equals -27, then divide by 1.8 equals -15

Answer 2

To convert Fahrenheit to Celsius, subtract 32 from the Fahrenheit temperature and then divide the result by 1.8. For -3°F, (-3 - 32) / 1.8 ≈ -19.4°C.

Answer 3

3 Fahrenheit is -16.1 Celsius.