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pcbtools.xyz curates calculators, fabrication checklists, and community-tested workflows for fast-moving hardware teams. Explore specialized collections and keep your stack production-ready.
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Specialized calculators
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Curated laminates
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Trusted manufacturers
Workflow recipes for production-ready boards.
See how teams at satellite, EV, and industrial robotics companies assemble rigid-flex stacks, validate PDNs, and sign-off thermal budgets without scrambling across spreadsheets.
Explore all toolsFeatured this week
Community-endorsed picks for fast-turn fabrication and validation.
Trace width
Size copper widths by current, copper weight, and temperature rise targets.
Ohm's law
Solve for voltage, current, resistance, or power with contextual tips.
Battery life
Estimate runtime with duty-cycle aware loads and chemistry derating.
Power budget
Stack up to 20 circuits with min/typ/max/inrush currents and rank the hottest rails.
LED resistor
Pick the exact series resistor, power rating, and E24 recommendation.
Frequency ⇄ wavelength
Apply λ = c/f to link antenna lengths, clocks, and enclosure limits.
Parallel resistance
Blend up to six resistors, equivalent Req, and branch current shares.
PCB trace impedance
Solve microstrip/stripline geometry with Hammerstad math plus stack visuals.
Conductor spacing
Pull IPC-2221 clearance minima by voltage band, unit system, and coating choice.
Resistor color code
Decode multiband resistors per IEC 60062 with tolerance + ppm guidance.
KiNotes
Engineering notes plugin for KiCad 9+ with @REF linking, BOM import, and PDF export.
Latest additions
Fresh utilities and libraries sourced from our fabrication partners.
Trace width
Size copper widths by current, copper weight, and temperature rise targets.
Ohm's law
Solve for voltage, current, resistance, or power with contextual tips.
Voltage divider
Dial in resistor ratios, equivalent resistance, and sense-node loading guidance.
Battery life
Estimate runtime with duty-cycle aware loads and chemistry derating.
Power budget
Stack up to 20 circuits with min/typ/max/inrush currents and rank the hottest rails.
Temperature
Convert between Celsius and Fahrenheit with component derating context.
Length converter
Cross-convert imperial and metric dimensions for panel and enclosure work.
LED resistor
Pick the exact series resistor, power rating, and E24 recommendation.
RC time constant
Translate R and C picks into τ, cutoff frequencies, and charge milestones.
Capacitor energy
See stored energy, coulombs, and ride-through potential instantly.
Capacitance conversion
Convert F/µF/nF/pF/fF without losing track of BOM math or IEC prefixes.
Inductance conversion
Normalize H/µH/nH picks so filter chokes and RF coils are comparable.
Frequency ⇄ wavelength
Apply λ = c/f to link antenna lengths, clocks, and enclosure limits.
Parallel resistance
Blend up to six resistors, equivalent Req, and branch current shares.
PCB trace impedance
Solve microstrip/stripline geometry with Hammerstad math plus stack visuals.
Conductor spacing
Pull IPC-2221 clearance minima by voltage band, unit system, and coating choice.
Resistor color code
Decode multiband resistors per IEC 60062 with tolerance + ppm guidance.
Decibel converter
Flip between dB, power, and voltage ratios using 10·log₁₀/20·log₁₀ math.
Reactance
Compare Xc and Xl across frequencies to line up filters and resonant tanks.
KiNotes
Engineering notes plugin for KiCad 9+ with @REF linking, BOM import, and PDF export.
PCB knowledge base
Structured guides to move from concept to validated production runs.
Rigorous Stackup Planning
Templates for 4–16 layer boards with differential pair presets and impedance guardrails.
View playbookFabrication Partners
Curated list of trusted PCB manufacturers with quick-turn and volume capabilities.
View playbookLearning Resources
Curated videos, courses, and guides to level up your PCB design skills.
View playbookOur open-source tools
Free tools we build and maintain for the PCB community.
KiNotes
Open SourceSmart Engineering Notes for KiCad 9+
Engineering notes that live inside your KiCad project. Link notes to components with @REF, import BOM metadata, and export to PDF—all without leaving your schematic.
Platform
KiCad 9.0+
v1.4.2
Community signal
What hardware teams are sharing, shipping, and remixing this week.
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