You can get the answer to "78 kg to lbs?" two different ways.
You can either multiply 78 by 2.204622622 (because in every 1 kg there are 2.20 pounds approx). Here is the math to get the answer by multiplying 78 kg by 2.204622622:
78 x 2.204622622 = 171.960564516
78 kg = 171.96 lbs
Or
Divide 78 by 0.45359237 (because for every 1 pound there is 0.45 kg approx). Here is the math to get the answer by dividing 78 lb by 0.45359237:
78 / 0.45359237 = 171.960564516
78 kg = 171.96 lbs
For convenience, it is also converted to a fraction. The solution as a fraction in its simplest form:
78 kg = 171 341/355 lbs
Note*- Avoid taking round figures for calculation; it can deviate your solution.