I consider myself pretty conversant in metric units. I know that 20 kilograms is 44 pounds (double it and add 10%) and that five kilometers is a little over three miles (I’ve, uh, run a lot of 5Ks).

Students often struggle with temperature conversions in science courses due to time constraints. A simplified approximation method offers a solution by using basic arithmetic: double Celsius and add ...

Every once in a while, you may see a temperature in Celsius instead of Fahrenheit. Your car thermometer may revert to the wrong system and you don’t know how to change it, for example. Since almost ...

Temperature conversion represents one of the most frequently encountered mathematical operations in academic science, yet traditional methods often prove cumbersome during time-pressured examinations.