Calculators and Electronic Design Aids
Calculators are Tools that can get you math right for you. Many need this aid as they cannot quickly learn number patterns. EE design needs many custom calculators to make product development easy.

Martindale's Calculators - Electrical Engineering - Engineering Unit Conversion & Scientific Calculators
Electronics Calculators - These calculators are useful when configuring the headphone amplifiers discussed on this site.
ESBCalc is a Freeware Scientific Calculator for Windows with Infix Notation, Brackets, Scientific Functions (Trigonometric, Hyperbolic, Logarithmic - including Base 10, Base 2 & Natural - plus more), Memory, Paper Trail, Result History List and more. v5 Includes support for Prefix functions so to evaluate log (10) you can enter log 10 rather than 10 log (which is the default behaviour)
ESBUnitConv is a Free User-friendly Windows Utility to easily convert between units of measurement. Includes Units for Temperature, Distance, Mass, Area, Volume, Pressure, Velocity, Acceleration, Force, Energy, Power, Fuel Consumption, Flow, Torque, Angles, Luminous Intensity, Illumination, Time & Radioactivity.
Electronics Calculators Index - EE, RF, Power and Passive Component calculators. Semiconductor device and circuit calculators.
The Chemandy calculators are designed to be easy to use and follow a common theme and layout where possible. Most of them have been used for several years now and complaints about their accuracy or functionality are very rare.

Martindale's Calculators - Electrical Engineering - Engineering Unit Conversion & Scientific Calculators
Electronics Calculators - These calculators are useful when configuring the headphone amplifiers discussed on this site.
ESBCalc is a Freeware Scientific Calculator for Windows with Infix Notation, Brackets, Scientific Functions (Trigonometric, Hyperbolic, Logarithmic - including Base 10, Base 2 & Natural - plus more), Memory, Paper Trail, Result History List and more. v5 Includes support for Prefix functions so to evaluate log (10) you can enter log 10 rather than 10 log (which is the default behaviour)
ESBUnitConv is a Free User-friendly Windows Utility to easily convert between units of measurement. Includes Units for Temperature, Distance, Mass, Area, Volume, Pressure, Velocity, Acceleration, Force, Energy, Power, Fuel Consumption, Flow, Torque, Angles, Luminous Intensity, Illumination, Time & Radioactivity.
Electronics Calculators Index - EE, RF, Power and Passive Component calculators. Semiconductor device and circuit calculators.
The Chemandy calculators are designed to be easy to use and follow a common theme and layout where possible. Most of them have been used for several years now and complaints about their accuracy or functionality are very rare.