Unit Digit of the Square Calculator

The last digit (one digit) of the product you get when you multiply one number by itself is the unit digit of the square.

We have two different methods you can use to calculate the unit digit of the square: The Rule Method and the Math Method.

To learn how to calculate the unit digit of the square of your number, please enter your number below.

Don't have a particular number in mind but want to learn how to get the unit digit of the square of a number? No problem. Check out these examples below:

Unit digit of the square of 81

Unit digit of the square of 799

Unit digit of the square of 34

Unit digit of the square of 76

Unit digit of the square of 52698

Unit digit of the square of 1234

Unit digit of the square of 9801

Unit digit of the square of 698

Unit digit of the square of 39

Unit digit of the square of 254