Logic Gate Truth Table Calculator
Generate truth tables, Boolean expressions, gate descriptions, comparisons, and custom input results for standard digital logic gates.
Calculator category

Digital electronics tools for logic, binary systems, coding, checksums, timing, and digital circuit analysis.
Available Calculators
12
Engineering Applications
37
Each listed tool links to a working calculator with engineering inputs, formulas, examples, notes, and related resources.
Generate truth tables, Boolean expressions, gate descriptions, comparisons, and custom input results for standard digital logic gates.
Evaluate Boolean expressions, generate truth tables, compare equivalence, validate syntax, and inspect parsed expression structure.
Simplify 2, 3, and 4 variable Boolean logic with Karnaugh maps, minterms, don't-care terms, Gray-code ordering, and verified SOP output.
Calculate fixed-width binary addition, subtraction, multiplication, division, carry, borrow, overflow, and signed or unsigned interpretation.
Convert decimal integers to two's-complement binary, decode signed binary patterns, analyze signed ranges, detect overflow, and perform sign extension.
Calculate fixed-width binary AND, OR, XOR, NOT, shifts, masks, bit mutation, field extraction, and Hamming distance.
Convert Binary-Reflected Gray Code, generate bounded sequence windows, and analyze adjacent state transitions.
Analyze SR, JK, D, and T flip-flop next states, characteristic tables, excitation tables, and ideal clock-edge sequences.
Calculate required flip-flops, counter modulus, maximum states, unused states, wraparound behavior, cascaded counters, and Mod-N design comparisons.
Calculate digital clock divider ratios, output frequency, output period, counter bits, binary counter stages, and integer divider error.
Calculate setup margin, hold margin, maximum theoretical clock frequency, clock skew effects, and synchronous timing path budgets.
Check digital logic-level compatibility using VOH, VOL, VIH, VIL, HIGH and LOW noise margins, bidirectional thresholds, and open-drain pull-up logic.
Choose the calculator that matches the decision you need to make: decode a component marking, size a value, check a frequency response, estimate loss, or verify a safety margin. A category page is useful only when it helps you reach a working tool, so this page lists released calculators only.
Calculator results depend on unit choices, idealized formulas, tolerance, temperature, frequency range, and component limitations. Review the formula and engineering notes on each calculator page before using the result in a schematic, BOM, or PCB layout.
Use the calculated value as a design reference, then confirm it against datasheets, derating curves, layout parasitics, measurement conditions, and manufacturer limits. The related guides below provide background when a calculation needs more context.
Engineering Guide
Apply Gray code to encoder and asynchronous-pointer workflows with registered source states, synchronizers, bus timing, reset, and verification boundaries.
17 min · Advanced
Engineering Guide
Identify static logic hazards with K-map adjacency and consensus terms, then validate path delays, synthesis preservation, and sensitive destinations.
17 min · Intermediate
Engineering Guide
Apply fixed-width binary arithmetic, two's complement, bitwise masks, Gray code, counters, clock dividers, and setup or hold timing in digital hardware.
22 min · Intermediate
Engineering Guide
Design sequential logic with SR, JK, D, and T state equations, characteristic and excitation tables, reset behavior, illegal-state recovery, and verification.
17 min · Intermediate
Engineering Guide
Design reliable digital interfaces using guaranteed thresholds, noise margins, current limits, open-drain pull-ups, rise time, voltage tolerance, and level shifters.
17 min · Intermediate
Engineering Guide
Learn digital logic fundamentals for electronics design, including logic states, gates, truth tables, Boolean algebra, K-maps, flip-flops, counters, timing margins, fixed-width representation, and logic-level compatibility.
19 min · Beginner to Intermediate
Use electronics conversion tools for frequency and period, AWG wire gauge, dBm and watts, hexadecimal, decimal, binary, and engineering workflows.
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Open →Oscillator and timing calculators for frequency, duty cycle, pulse width, clocks, timers, and timing circuits.
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