RMRUtils - This program provides a fully featured calculator, but also quick and easy conversion between all common and (many, many less common) unit values, such as area, length, energy, speed and volume units, temperature scales, number formats. The program can also calculate dates, journey times, VAT and can suggest lottery numbers
KElectriKal - 15 different Calculators organized for doing 30+ Calculations. Ohms law,Power, Horse power, RLC, Efficiency.
"Finding Difficult to remember all the calculation equation for electrical units at your workplace, school ...," Here is a full stop for all your worries
Ultimate Converter Calculator - A very powerful converter and calculator between various imperial and european units with 4 decimals precision! Advanced Unit Converter Calculator for Professionals with 50+ categories and over 1000+ units, 50000+ conversions. A must have utility for everyone who is related with units and measurements