Multiply by nine, divide by five, and add thirty-two is the formula for what conversion?

The Conversion Formula for Celsius to Fahrenheit is: °C × 9/5 + 32 = °F (Multiply by nine, divide by five, and add thirty-two).

Temperature is a property of matter which reflects the quantity of energy of motion of the component particles. There are several scales used to measure this value (e.g., Kelvin, Celsius, Fahrenheit and Rankine).

Daniel Gabriel Fahrenheit (1686-1736) invented the mercury thermometer in 1714. He also created the Fahrenheit temperature scale, a practical temperature scale where 0°F and 100°F corresponded to the coldest and hottest temperatures encountered in Western Europe. Under the Fahrenheit temperature scale, water freezes at 32°F and boils at 212°F.

The centigrade temperature scale was devised by Anders Celsius in 1744. According to the centigrade temperature scale water freezes at O°C and boils at 100°C. While the units were originally called degrees centrigrade, they were renamed degrees Celsius in 1948.

More Info: www.azom.com

Test your knowledge

What are your thoughts on this subject?

22 Comments

Larry Jones

Amanda Read, I don't know why the US is so stubborn about converting to the metric system. Once you get used to it, it is much simpler than the system we currently use. SPG Cool Dude, thank you for the learning experience today.

Grant McIntosh

Although a lot of British people are criticising the USA for sticking to Fahrenheit, we in the UK do have a habit of using Centigrade when the temperature is cold and using Fahrenheit when it's hot, to emphasise how much we're suffering. 100 degrees (F) sounds a lot more impressive than 38 degrees (C) ...likewise, minus 10 (C) sounds a lot colder than plus 14 (F).

Coral Harvey

A good explanation! Fascinating to think the thermometer was invented by Daniel Farhenheit over three hundred years ago 1718. Celcius or centigrade was invented over a hundred years later by Anders Celsius by 1744 . Like most people I suspect I interchangeably use most scales . I didn't realise that the US uses the Farhenheit scale only.

ebitnet

When I lived in Canada, I switched to the Kelvin scale. Somehow 230K seemed a lot warmer than the outside temperature in winter.

Player

Jaimi McEntire, the French were the first proponents of the metric system.

Player

Grant McIntosh, I only use Fahrenheit with my mum because she understands it better hot or cold.

Wayne Roberts

mikdabrit, No they are not! It is the same scale but Kelvin is absolute temperature - water freezing at 237 and boiling at 337! (At atmospheric pressure.)

deborahpmercer

Larry Jones, I agree! And as Julie Allen points out, the irony is that the dollar was a metric currency way before many others!

Alexandra Wikeley

I just double it and add 30 it works well enough for british weather, and I cook everything at 230 regardless😁

Alan Waites

In the summer i switch to Fahrenheit and switch back to Celsius in the winter

Jaimi McEntire

Lol. The British are always ragging on the US for using the system they gave us.

Robert Henderson

I would also point out that the Kelvin scale is identical to the Celcius scale so the formula works equally as well for either though in both cases it really only works for positive temperatures not negative

Carolyn Brior

I prefer Fahrenheit. It is more precise than Centigrade as there are 180 degrees F between boiling and freezing point of water. Whereas, there are only 100 degrees C difference.