Calculators / Info

Coil32 (Coil64) Calculator

"Coil32" is a free coil inductor calculator, that allows calculating: single-layer and multilayer air-core inductors, toroidal air core coil inductance, inductors on ferrite rings, in pot core, flat coils on the PCB, and also LC tank parameters. The program has additional plugins to calculate another manner of coils. There are versions for 32 & 64-bit Windows, Linux, MacOS & Android platforms.

Calculate Size of Solar Panel, Battery Bank and Inverter

This MS Excel spreadsheet calculates the following: Total Demand Load, Size of Solar Panel, Select Type of Connection of Solar Panel, Select Rating of Each Solar Panel, Energy from Solar Panel as per Daily Sunlights, Size Battery Bank, Select Type of connection of Batteries in Battery Bank, Size of Inverter


One of confusing staffs in electronic can be the conversion between dBu, dBm, W, mW, V and uV units. dBCalc is small windows application allow you to converts between mentioned physical units at flash.

Saturn PCB Design Toolkit

The Saturn PCB Toolkit is the best freeware resource for PCB related calculations you can find. It incorporates many features that PCB designers and engineers are in regular need of like current capacity of a PCB trace, via current, differential pairs and much more. Microstrip calculator || Stripline calculator || Differential pair calculator || Via current calculator || PCB trace current calculator || Planar inductor calculator || Padstack calculator || Crosstalk calculator || Ohm’s Law calculator || XC XL Reactance calculator || BGA Land calculator || Er Effective calculator || Wavelength calculator || PPM Calculator

Murata SimSurfing Tool

Murata SimSurfing Design Support Software is a free website design tool which provides information and data for selecting electronic components. The SimSurfing tool has three main features: Draws graphs by simple operation - Provides highly accurate data - Offers substantial search functions. This tool allows parts to be searched by part number, or partial part number, and parametrics to analyze parts for temperature rise, impedance values, and more. Standard and technical datasheets can be downloaded directly from the SimSurfing tool. SimSurfing web version: