Calculators for electronics

PCB Trace Width Calculators

PCB Trace Width Calculator (Internal)

PCB Trace Width Calculator (External)

PCB Trace Current Calculators

PCB Trace Max Current Calculator (Internal)

PCB Trace Max Current Calculator (External)

PCB Trace Resistance Calculators

PCB Trace Resistance Calculator

PCB Impedance Calculators

PCB Microstrip Impedance Calculator

Embedded Microstrip Impedance Calculator

Symmetric Stripline Impedance Calculator

Asymmetric Stripline Impedance Calculator

Wire Microstrip Impedance Calculator

Wire Stripline Impedance Calculator

Edge Coupled Microstrip Impedance Calculator

Edge Coupled Stripline Impedance Calculator

Broadside Coupled Stripline Impedance Calculator

Impedance Circuit Solvers

L-Matching Impedance Network Calculator

T-Matching Network Calculator

Pi-Matching Impedance Network Calculator

Cable Impedance Calculators

Coax Impedance (Transmission Line) Calculator

Twisted Pair Impedance (Transmission Line) Calculator

Crosstalk Calculators

Microstrip Crosstalk Calculator

Stripline Crosstalk Calculator

Converters

RF Unit Converter

Resistor Calculators

4 Band Resistor Calculator (Color Coded)

5 Band Resistor Calculator (Color Coded)

6 Band Resistor Calculator (Color Coded)

Resistance Tables

0.1%, 0.25%, and 0.5% Resistor Table

Inductance Calculators

Magnetic Field Calculator

Wire Self Inductance Calculator

Parallel Wire Inductance Calculator

Coax Inductance Calculator

Wire Over Plane Inductance Calculator

Loop Inductance Calculator

Rectangle Loop Inductance Calculator

Coil Inductance Calculator

Broadside Coupled Trace Inductance Calculator

Edge Coupled Trace Inductance Calculator

Resistor for LED Calculators

What resistor for LED (basic calculator)

What resistor for LED (advanced calculator)

Graph Paper

Engineering Graph Paper (PDF Download)

Log-Log Graph Paper (PDF Download)

Semi-Log Graph Paper (PDF Download)

Smith Chart Graph Paper (PDF Download)

Math Help

Math Reference Sheets

Algebra Reference Sheet

Geometry Reference Sheet

Trigonometry Definitions and Functions

Trigonometry Laws, Rules, and Identities

Calculus Derivatives Rules

Calculus Integrals Reference Sheet

Math Calculators

Basic Calculator Online

Scientific Calculator Online