Convert Celsius to Fahrenheit In-Your-Head Tip......

[diggingdogfarm]

I thought that this little tip might help someone.

I struggled with converting C to F easily years ago until I learned this little trick that can be done in your head.

1) Double the Celsius temperature.
2) Subtract one tenth of that value from itself.
3) Add 32.

That's it! :biggrin:

EXAMPLE: Convert 50 degrees C to F:
1) Double the Celsius temperature (2 x 50 = 100)
2) Subtract one tenth of this value (100-10 = 90)
3) Add 32 (90 + 32 = 122 degrees F)

Cheers, peace and bacon grease,
~Martin

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[pit 4 brains]

It can be done by moving the switch on the back of the thermometer too..! I just had to.

Going from F to C would be just the opposite. Subtract 32, add one tenth then divide by two..

Good post.

 

[diggingdogfarm]

Going from F to C would be just the opposite.

Yep! :smile:


Cheers, peace and bacon grease,
~Martin

[COLOR=#black]Click here to check out the Universal Cure Calculator!!!!![/COLOR]

 

[diggingdogfarm]

EXAMPLE: Convert 68 degrees F to C

1) 68 - 32 =36
2) 36 X 1.11 = 39.96, round off to 40.
3) 40/2 = 20 degrees C

or

1) 68 - 32 =36
2) 36/9 = 4
3) 4x10 = 40
4) 40/2 = 20 degrees C

Cheers, peace and bacon grease,
~Martin

[COLOR=#black]Click here to check out the Universal Cure Calculator!!!!![/COLOR]

 

[dragonmaster194]

Thanks for sharing that Martin, now if only my swiss cheese brain can remember that.  No fun getting old.  Steve

 

[s2k9k]

It can be done by moving the switch on the back of the thermometer too..! I just had to.

Going from F to C would be just the opposite. Subtract 32, add one tenth then divide by two..

Good post.

That won't work, the "tenths" will change. In Martins example the "tenth" was 10 but to go backwards the "tenth" would be 9.

 

[s2k9k]

EXAMPLE: Convert 68 degrees F to C
1) 68 - 32 =36
2) 36 X 1.11 = 39.96, round off to 40.
3) 40/2 = 20 degrees C
or
1) 68 - 32 =36
2) 36/9 = 4
3) 4x10 = 40
4) 40/2 = 20 degrees C
Cheers, peace and bacon grease,
~Martin

Click here to check out the Universal Cure Calculator!!!!!

Where did the "9" in #2 and the "10" in #3 come from?

 

[diggingdogfarm]

That's just an easy way to remember how to reverse step 2 in the first example.

Subtract one tenth from 100 = 90

To do the reverse of that, divide by 9 and multiple that figure by 10.
90/9 =10
10x10=100

Cheers, peace and bacon grease,
~Martin

[COLOR=#black]Click here to check out the Universal Cure Calculator!!!!![/COLOR]