Open Source Calculators

Scapegoat Software's Erlang B calculator is just that, an Erlang B calculator. It was written in Lazarus under Windows as a small project to have a simple standalone calculator for different telecom projects. We are releasing it under the GNU GPL 2.0.

IPv6SubnetCalc is a comprehensive calculator for IPv6 addresses. It comes with Java Swing GUI and supports the following RFCs: RFC4291, RFC4193, RFC3849, RFC2464, RFC5375, RFC4941, RFC3513, RFC3879, RFC4941, RFC3056, RFC3587, RFC2374, RFC3306, RFC3956.

The Calculator File-Xferer, transfers files from and to a casio calculator through a serial interface.

FreqLength is a simple wavelength calculator that takes a given frequency as input and spits out various wavelength values for that frequency (full wave, half wave, etc.) If you'd like to donate there's several ways to do so: PayPal: https://paypal.me/gerowen Bitcoin (BTC): bc1q86c5j7wvf6cw78tf8x3szxy5gnxg4gj8mw4sy2 Monero (XMR): 42ho3m9tJsobZwQDsFTk92ENdWAYk2zL8Qp42m7pKmfWE7jzei7Fwrs87MMXUTCVifjZZiStt3E7c5tmYa9qNxAf3MbY7rD LiberaPay: https://liberapay.com/gerowen

It works on Windows XP/VISTA/7/8 versions, is stable and simple to use. Current product is intended for professional accountants, financial managers and experienced investors. Besides ergonomic report printing function, you can copy and paste report results into any Windows/Office compatible text editor. Our calculator includes: •Mortgage economics •Enterprise financial analysis •Production management analysis •Project analysis, etc. Our software is plug&play and easy to use. It works a lot faster than similar online calculators. Our company is operating under the "T-Count.com" brand name and is engaged in financial software production. To obtain broader view of software or to purchase it please contact us at WWW.FINANCE-INVESTOR.COM

Just a Fork from https://sourceforge.net/projects/erlangcalc. I needs to extend the functions and to compile in Delphi.

This is a protocol stack written to interface with the TI line of calculators on the Atmega line of microcontrollers. Currently supports the TI82, TI83, TI84, and TI89.

Data Transfer Calculator is a tiny GUI program to translate between data transfer amount, duration and speed, and convert the values between different units.

Avoid by-guess-and-by-golly use of turns-to-inductance calculators to determine number of turns to yield the inductance you need. Using the inversion of Wheeler's formula for inductance of single-layer coils, calculates the number of turns required to produce a specified inductance. Specify desired inductance, coil radius, and winding pitch.

MLS6(BG9AMG's the Maidenhead's Locator System Calculator 6th) is a free calculator program, which can convert Maidenhead's Locator System Grid Square into a coordinate(Lat/Lon) and gernerate a GoogleEarth kml file, distri- buted under GPL.

A calculator of Impedance Adaptation for Antennas.

this is a perfectly homemade calculator using c# language.this is very simple coding as well as design logic.you can download from here http://sourceforge.net/p/mycalculator . if you like this then please give Review and if you face any kind of problem by using it then also give Review; otherwise I can’t understand my mistake . Thanks .

Network Speed Calculator is a tool to calculate the speed of downloads over various speed networks (including the internet). This program supports network speed, data size, number of simultaneous users and networks running under their intended speeds.

Phone Call Cost is a program that in the end, aims to be able to pull length of call time from a phone that displays such information and multiply it by a known rate (given to the program via the UI (or hard coded in by the end user)) and return the cost

C# Website system. This is going to be the "Newer" Internet, and even has a custom theme system. This is going to let users do "anything" that won't harm the client computer in any way.

ShadowFox is an all-in-one browser, including a browser (DUH!), a simple bar graphing system, a calculator, and much more! It is intended to replace many of the simple Windows(C) applications you use everyday, such as IE, NotePad, Paint, Calc, etc.

Shapley is a compilation of free PyGTK networking tools distributed under the BSD license.

A "bitwise precision tool" bitrate calculator using MS-EXCELL programming. The results are used for DVD Video to audio-video streams. It helps compute VIDEO- & AUDIO-Bitrates, aspect ratio, screen size, choose audio format cbr. Has units MB,pixel,d:h:m:s, kbps, etc