# How to convert fahrenheit to celsius using calculator

He then observed that the temperature at which ice starts to form on the surface of water was 32 degrees warmer than zero. This formed his zero point. Quick links to those are included below.

In other words, take your Fahrenheit reading, subtract 32, multiply the answer by five and then divide by nine. So 66 degrees Fahrenheit minus 32 would be 34, times five makes divided by nine equals Here, you multiply your Celsius temperature by nine, divide by five and then add 32 to find the Fahrenheit reading. Under this system, double your Centigrade and add 32 to find Fahrenheit. For a start, we can use 40 instead of So under this system to go from Fahrenheit to Celsius, you add 40, multiply by 5, divide by 9, then subtract Going from Celsius to Fahrenheit you also add 40 to the centigrade reading, multiply by nine, divide by 5, then subtract Our original 66 degrees Fahrenheit plus 40 makestimes five equalsdivided by nine gives us That 13 degrees Celsius times plus 40 gives 53, which multiplied by nine makesdivided by five to make That means using 1.

Trying this out in action on a hot day and remembering that multiplying by 1.

Of course, if you're looking for a pain-free method of doing the calculation right here and now then you can use our handy Fahrenheit and Celsius converter, below. Our website provides a comprehensive list of online conversion tools.

So, should you wish to convert between fahrenheit, celsius and any other units of temperature, give the temperature converter a try. Please rate this article using the star rater below.

## How to Convert Negative Celsius to Fahrenheit

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### Fahrenheit to Celsius conversion

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Fahrenheit to Celsius Formula: Celsius to Fahrenheit Formula: This gives modified formulae of: It always looks chillier in Celsius Rate this article Please rate this article using the star rater below. However, the 0 degree point on the two scales do not line up on a 1-to-1 ratio, so some temperatures are negative in Celsius but positive in Fahrenheit.

On the Celsius scale, water freeze s at 0 degrees -- in Fahrenheit, water freezes at 32 degrees. Because of this, all temperatures between 0 and 32 degrees Fahrenheit are positive on the Fahrenheit scale and negative in Celsius. Zero degrees Fahrenheit lines up with Also, at degrees Celsius and Fahrenheit the temperatures match up. So, degrees Celsius and degrees Fahrenheit are the same temperature.

#### Temperature Conversion Calculator

To convert from degrees Celsius — C -- to degrees Fahrenheit — F -- use the following equation: So, to convert a temperature from Celsius to Fahrenheit, you multiply it by 1.

Say you want to find what degrees C is in Fahrenheit.

First, multiply by 1. Remember that a negative number multiplied by a positive number is a negative number. For instance, if you wanted to convert degrees Fahrenheit to Celsius, first subtract 32 from This results in in