Results

Result (Binary)

Result (Unsigned Decimal)

Result (Signed Decimal)

Result (Octal)

Number 1 (Binary)

Number 2 (Binary)

OR Calculator

Our OR Calculator applies the bitwise OR operation to two numbers, bit by bit. Enter each number as decimal, binary, or octal, choose a bit width, and get the result in every format at once.

OR Operation Explained

OR: a result bit is 1 when at least one of the two numbers has a 1 in that position; the result bit is 0 only when both numbers have a 0 in that position. Formula: A OR B.

Truth Table

A  B  |  OR
0  0  |   0
0  1  |   1
1  0  |   1
1  1  |   1

Example Calculation (8-bit)

A = 12 (00001100), B = 10 (00001010)

OR: 00001100 | 00001010 = 00001110 = 14

Features of Our OR Calculator

✅ Accepts decimal, binary, or octal input

✅ Choose 4, 8, 12, or 16-bit representation

✅ Computes the bitwise OR of two numbers

✅ Shows signed and unsigned decimal, binary, and octal results

Who Can Use This Calculator?

Programmers – For debugging flags, masks, and bitwise logic

Students – For digital logic and computer science coursework

Network & Systems Engineers – For subnet masks and permission flags

Puzzle Solvers – For quick binary logic checks

👉 Try our OR Calculator to perform bitwise OR on any two numbers instantly.