⇩ COMPLEMENT CALCULATORS ⇩

Enter a binary number.

RESULT

The 2's complement of 0101 is 1011.

DESCRIPTIONS

Step 1: Find the 1's Complement

We obtain the 1's complement of a binary number by subtracting each digit from 1 or alternatively by replacing each 0 with 1 and each 1 with 0.

Step 2: Add 1 to the 1's Complement

We add 1 to the 1's complement to obtain the 2's complement.

OTHER INFORMATION

👉 Assuming the most significant bit is the sign bit, the decimal equivalents of the entered number and its complement are as following.

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INFORMATION

We can find the 2's complement of a number in two steps.

To learn an alternative method for the 2's complement calculation, you can use the calculator below.

2's complement calculator,

You can use 2's complement calculator in two ways.

USER INPUTS

You can enter a binary number to the input box and click on the "CALCULATE" button. The result and explanations appaer below the calculator
RANDOM INPUTS

You can click on the DIE ICON next to the input box. If you use this property, a random binary number is generated and entered to the calculator, automatically. You can see the result and explanations below the calculator. You can create your own examples and practice using this property.
CLEARING THE INPUT BOX

To check the 2's complement of another binary number you can clear the input box by clicking on the CLEAR button under the input box.
COPYING & DOWNLOADING THE SOLUTION
- You can copy the generated solution by clicking on the "Copy Text" link, appaers under the solution panel.
- Even you can download the solution as an image file with .jpg extension if you click on the "Download Solution" link at the bottom of the solution panel. You can share the downloaded image file.