3 Mastering Rounding: How to Quickly Round Any Number to 3 Significant Figures ✨

Rounding to 3 significant figures is probably the most common way of rounding off. Rounding the number off to 3 significant fugures means you require 3 non-zero digits from the start of the number.

So in example 1, 27.1258 gets rounded to 27.1.
In example 2, 3.12845 gets rounded to 3.13.
In example 3, 91472 gets rounded to 91500.
And in example 4, 0.00017594 gets rounded to 0.000176.