Digital Logic Calculators
Free online tools for Boolean algebra, truth tables, and Karnaugh maps. Perfect for students, engineers, and educators learning digital logic design.
Choose Your Calculator
Select the digital logic tool you need for your project or homework
Truth Table Generator
Generate complete truth tables for any Boolean expression with step-by-step explanations.
- Multiple variables
- Export to CSV
- Step-by-step solutions
Boolean Algebra Simplifier
Simplify complex Boolean expressions using algebraic laws and rules.
- Automatic simplification
- Show all steps
- Multiple methods
Karnaugh Map Calculator
Create and solve Karnaugh maps for up to 6 variables with grouping visualization.
- Visual grouping
- Minimized expressions
- Don't care conditions
Logic Gate Calculator
Compute gate outputs for AND, OR, NOT, NAND, NOR, XOR, and XNOR gates.
- All gate types
- Interactive inputs
- Detailed explanations
SOP/POS Converter
Convert Boolean expressions to canonical Sum of Products and Product of Sums forms.
- SOP & POS forms
- Minterms & Maxterms
- Truth table display
Binary Calculator
Perform binary arithmetic operations including addition, subtraction, and bitwise operations.
- Arithmetic operations
- Bitwise operations
- Step-by-step solutions
Minterm & Maxterm Calculator
Generate minterms and maxterms for Boolean expressions with detailed analysis.
- Minterm generation
- Maxterm generation
- Truth table analysis
Truth Table to Expression
Derive Boolean expressions from truth tables with interactive input and SOP/POS generation.
- Interactive truth table
- SOP & POS generation
- Expression derivation
Expression to Circuit
Generate visual logic circuit diagrams from Boolean expressions with gate analysis.
- Visual circuit diagrams
- Gate count analysis
- SVG export
Circuit to Expression
Convert logic circuit diagrams to Boolean expressions with gate analysis.
- Circuit analysis
- Expression derivation
- Gate counting
Adder Calculator
Calculate sum and carry outputs for half adder and full adder circuits.
- Half adder calculation
- Full adder calculation
- Truth tables
Subtractor Calculator
Calculate difference and borrow outputs for half subtractor and full subtractor circuits.
- Half subtractor calculation
- Full subtractor calculation
- Truth tables
Multiplexer (MUX) Calculator
Generate MUX truth tables and logic expressions for 2:1, 4:1, and 8:1 multiplexers.
- 2:1, 4:1, 8:1 MUX
- Truth table generation
- Boolean expressions
Demultiplexer (DEMUX) Calculator
Show DEMUX logic and truth tables for 1:2, 1:4, and 1:8 demultiplexers.
- 1:2, 1:4, 1:8 DEMUX
- Data routing logic
- Boolean expressions
Encoder / Decoder Calculator
Simulate 8×3 encoder and 3×8 decoder circuits with interactive truth tables.
- 8×3 Priority Encoder
- 3×8 Binary Decoder
- Truth tables & expressions
Flip-Flop Calculator
Calculate next state for SR, JK, D, and T flip-flops with interactive truth tables.
- SR, JK, D, T flip-flops
- Next state calculation
- Truth tables & expressions
Counter Calculator
Calculate number of states, outputs, and frequency for binary, ring, and Johnson counters.
- Binary, Ring, Johnson counters
- Frequency analysis
- State sequences
Number System Converter
Convert between Binary, Decimal, Octal, and Hexadecimal number systems.
- Binary ↔ Decimal
- Octal ↔ Hexadecimal
- All base conversions
Gray Code Converter
Convert between Binary and Gray Code with step-by-step conversion process.
- Binary ↔ Gray Code
- Step-by-step process
- Error-resistant encoding
BCD & Excess-3 Converter
Convert between Decimal, BCD, and Excess-3 codes with step-by-step process.
- Decimal ↔ BCD
- BCD ↔ Excess-3
- Digital system codes
1's & 2's Complement Calculator
Calculate 1's and 2's complement of binary numbers for signed arithmetic.
- 1's Complement
- 2's Complement
- Signed binary arithmetic
Bitwise Operations Calculator
Perform AND, OR, XOR, NOT, NAND, NOR bitwise operations on binary, decimal, and hex numbers.
- All bitwise operations
- Multiple input formats
- Step-by-step calculations
Boolean Algebra Laws
Complete reference of Boolean algebra laws including De Morgan's, distributive, and absorption laws.
- All Boolean laws
- Searchable reference
- Examples & descriptions
SOP vs POS Explained
Educational guide to Sum of Products and Product of Sums forms with examples and conversions.
- Detailed explanations
- Conversion methods
- Practical examples
K-Map Examples
Step-by-step Karnaugh map examples for 2, 3, and 4 variables with grouping techniques.
- Step-by-step solutions
- Grouping strategies
- Practice problems
Boolean Simplification Examples
Master Boolean algebra simplification with detailed step-by-step examples using algebraic laws.
- Algebraic methods
- Step-by-step solutions
- Common patterns
Truth Table Examples
Complete guide to truth table construction and analysis with comprehensive examples.
- 2-4 variable examples
- Expression derivation
- Practical applications
Logic Simplification Practice
Interactive practice problems for Boolean algebra simplification with instant feedback.
- Interactive problems
- Instant feedback
- Difficulty levels
Why Choose Our Calculators?
Fast & Accurate
Get instant results with step-by-step explanations for better understanding.
Privacy First
No registration required. All calculations happen in your browser.
Educational
Learn with detailed explanations and visual representations.
Mobile Ready
Works perfectly on all devices - desktop, tablet, and mobile.