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Boolean Algebra Calculator

Insert the equation in the Boolean algebra calculator to know the truth table for Boolean expression.

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Boolean Algebra Calculator

The Boolean algebra simplifier or expression calculator is an online tool that gives the truth table for boolean expressions and tells the nature of the expression.

Instead of typing And, Not, Nand e.t.c, you can simply use algebraic functions like +, -, *, e.t.c.

What is Boolean algebra?

Boolean algebra is the branch of algebra (mathematics) in which the values of the variables are the truth values true and false, usually denoted 1 and 0, respectively.

We use Boolean algebra to analyze digital gates and circuits. It is being used in Finance and Digital computing now. 

Boolean Expressions and Functions

Name Algebraic function
AND    F = A.B
OR    F = A + B
NOT    F = A
NAND    F = (AB)
NOR    F = (A + B)

Example:

Find the truth table for the following boolean expression.

(A.B) +B

Solution:

Step 1: Break the expression into smaller operations. 

  1. A.B = C
  2. C + B

Step 2: Solve these functions separately and combine them in one logic table.

ABA.B = CC + B
0000
0101
1000
1111

Truth Table for Binary Logical Operations

pq F NOR   ¬p  ¬q  XOR NAND AND  XNOR qpORT
TTFFFFFFFFTTTTTTTT
TFFFFFTTTTFFFFTTTT
FTFFTTFFTTFFTTFFTT
FFFTFTFTFTFTFTFTFT
Com        
Assoc        
AdjFNOR¬q¬pXORNANDANDXNORpqORT
NegTORpqXNORANDNANDXOR¬q¬pNORF
DualTNAND¬p¬qXNORNORORXORqpANDF
L id  F   F TTT,FT  F 
R id    F F TT  T,FTF 

Boolean Algebra Laws

Below you can find the rules of Boolean Algebra which are used to evaluate Boolean expressions.

Laws NamesAND FormOR Form
Commutative LawA.B = B.AA+B = B+A
Associative Law(A.B).C = A.(B.C)(A+B)+C = A+(B+C)
Identity LawA.1 = AA+0 = A
Zero and One LawA.0 = 0A+1 = 1
Inverse LawA.A' = 0A+A' = 1
Idempotent LawA.A = AA + A = A
Absorption LawA(A+B) = A

A + A.B = A

A + A'B = A+B

Distribution Law(A.B)+C = (A+C).(B+C)(A+B).C = (A.C)+(B.C)
De Morgan's Law(A.B)' = A'+B'(A+B)' = A'.B'
Double Complement Lawx̄̄̄ = x

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