If you often have to plot graphs, then this program allows you to produce high quality 3D graphs with relative simplicity. Graphs can be shaded with custom gradual colors along the X, Y or Z axis. In 3D graphs, the lighting is enabled to demonstrate the depth of the surface through shades and shadows. The Graphing Calculator performs mathematical calculations and then illustrates the results in 3D drawings.

The interface is divided into three sections. The first represents written equations. The second is a keypad to enter into all kinds of mathematical elements. Finally you have the graphics screen that can be customized with colors. You can also manipulate graphics by rotating them into any position.

For scientists, mathematicians and teachers, this program gives an extra touch of class to presentations or teaching material.

Download Graphing Calculator 3D 2.3 in Softonic

If you're one of those mad scientists who don't have enough with the Windows calculator, then SpeedCrunch is for you.

This powerful advanced calculator lets you perform many mathematical tasks with an up to 50 decimal precision which I personally find impressive. Also, instead of a tiny rectangular screen like the one you find in real calculators, SpeedCrunch features a huge, blank space where all your operations are conveniently saved, so that you can review your calculations at any time.

SpeedCrunch supports on-the-fly calculations, includes more than 50 built-in math functions and can be easily customized. You can use it with its virtual keyboard or your own physical PC keyboard, though math functions can only be entered from the virtual one. It would have been a great idea to create shortcuts for those functions.

With SpeedCrunch you can easily perform many different maths calculations and functions with a high precision and the possibility to review results at any time.

Download SpeedCrunch 0.10.1 in Softonic

CCCalc is a very simple calculator that outstands for its original interface, more similar to a school notebook than to a standard PC calculator.

You can customize the background, the text font type and other customization options. As for the mathematical capabilities of the program in itself, we must admit they're pretty simple – they're limited to the basic arithmetic calculations such as adding or subtracting.

In a way we could say that CCCalc is more focused on creating a more user-friendly interface to the standard calculator than on providing more functionalities in order to make it a more complete tool.

If you're looking for a nicely designed calculator, CCCalc is for you; if what you need is a powerful scientific tool, you should look somewhere else.

Download CCCalc 1.5.44 in Softonic

We all are worried about climate change and whether this is linked to the pollution we produce. People are now more sensitive about how many carbon emissions their lifestyle produces. It is difficult though to have an idea about how green our choices are and what we can allow ourselves per year in terms of air travel, for example.

With The Carbon Footprint Calculator you can actually calculate your impact on the environment. You can roughly insert the total distance you drive and you travel by air, bus or train in one year. Swap between the metric and the English unit measurement system if you prefer. In the Energy Section you can specify the Electricity, the natural gas and the fuel oil used monthly, together with the State (US) where you live and the number of people who live with you. Then comes the recycling and activities section where you have to select the type of recreation you do, the buying habits and the percentage of trash you recycle. Finally, you will have to specify the percentage of food or items you buy that are grown or produced locally. I found it difficult to quantify the amount of food I eat each day in Kg. I've never thought about it and I was astonished to know that we eat between 25 to 75kg per day.

A detailed Footprint Result is shown after pressing the black footprint icon on top of the main form. It shows the amount of Co2 we produce in a coloured cake chart. You can compare it with the information provided underneath it, in which it states the average emission per person in US, which is about 20tons of Co2 per year, while the for EU citizens it's around 11 tons. Whether your personalised results will make you feel a bit guilty or proud of your lifestyle, remember you can always offset the emission you produce by supporting specific schemes. A selection of those, found on the Tufts Climate Initiative web site is: Carbonfund, The CarbonNeutral Company, Cleanairpass, Climate Care, Solar Electric Light Fund and TerraPass.

This basic application allows you to keep a track of your energy consumption and calculate your carbon emissions. Unfortunately, it doesn't allow you to create graphs comparing the results of different years and it doesn't give you any advice on how you can have a greener lifestyle based on your lifestyle.

Download The Carbon Footprint Calculator 1.0 in Softonic

ProKalc is a full-featured scientific/financial calculator with scrolling tape. Using a point-and-click interface, you enter data for trig, exponential, scientific, and amortization problems and get immediate answers, with your input reviewable on tape. You can print results to the Clipboard, a file, or a printer. Ten editable memory locations, online context-sensitive help, and pop-up work screens for complex calculations. ProKalc features 15-digit accuracy in scientific mode along with multi-pane financial and geometry modules to ease calculations.

Download ProKalc 7.9b in Softonic

ESBCalc is a Win32 Scientific Calculator with Infix Notation, Brackets, Scientific Functions, Memory, Optional Paper Trail, Result History List, Customisation of the Colours & Fonts used, Customisation of the Hints, and more.

Functions include Trigonometric, Hyperbolic, Logarithmic - Base 10, Base 2 & Natural - and many more. Now includes Prefix Function support so that Log (1.3) can be entered as log 1.3 rather than as 1.3 log which is the default behaviour. Looks best with Windows XP in 800x600 (or better) and 32-bit colour. Now with improved Large Font Support.

Download ESBCalc Pro 6.2.3 in Softonic

Mortgages are the current most common nightmare for families, who struggle to make ends meet in any way. If you're in this situation, this program may help you.

Bear in mind that Mortgage APR Calculator is not a magical cure for your financial problems, as it's clearly stated on its disclaimer. Take it just as a tool to calculate possible advantages and disadvantages before taking any decision about your financial situation. Mortgage APR Calculator only needs a few data to calculate the annual percentage rate and therefore obtain the true cost of a mortgage. It's easy to use and works very fast.

The program displays a tabbed interface but you may simply stick to the first one, as the other two are ads which make it a bit confusing. In fact I had the feeling that they were trying to fool me. Also, I had problems when trying to close the program: it showed an error message and I had to close it from the Task Manager window.

With Free Mortgage Loan APR Calculator you can quickly find which mortgage is more convenient for you in financial terms.

Download Free Mortgage Loan APR Calculator 4.0 in Softonic

AllerCalc, previously know as VersaCalc, is an advanced calculator which allows you to perform complex scientific calculations that other calculators can't handle.

The calculator works with a rotating screen that stores your last calculations and results. It supports more than forty functions including algebraic, transcendental, trigonometrical, hyperbolic and financial. Chances are that if you can't solve a mathematical equation with this calculator, then you won't be able to solve it with anything.

AllerCalc also includes different options that allow you to choose the sources, format (general or scientific) and select the number of decimals to visualize. You can even make metric conversions and much much more. A powerful calculator for that need some serious mathematical power.

Download AllerCalc 2.11 in Softonic

Trying to get pregnant can sometimes be like playing snooker in the dark. You never know when you're going to eventually hit the bullseye during that all important ovulation period. Pregnancy calculator helps you plan the optimum time not only to conceive, but also for the important milestones in your pregnancy.

For example, once you've entered your personal data, Pregnancy Calculator can predict the probable date of conception, the start date of the second and third trimesters and even the date that offers the best survival rate for your baby. It also calculates the dates that most babies may arrive between and more obvious things that you should know anyway - like how many weeks and days you are pregnant and how many weeks and days you have left until that special day. All this is accompanied by a few baby sound effects and options to print the most important data.

For those that really like to hit the nail on the head, you can even tell Pregnancy Calculator on which day you want the baby to be born (useful if you are trying to give birth around a major holiday or event), and it will advise you on exactly what day you'll need to have a shot at conceiving. Much of what this program offers most parents to be should be able to calculate anyway but if you have busy lives or are bad with dates, it could make the process a while lot more fun.

Download Pregnancy Calculator 2.72 in Softonic

Hexit is a simply designed, easy-to-use calculator that enables you to convert between different number systems on the fly.

Its interface displays whichever value you enter in the decimal, hexadecimal and binary systems, performing the conversion on the fly as you type. Well, you actually have to click on the number buttons; at least I couldn't find any way to use the keyboard and type numbers instead, and I found this pretty annoying.

In all, this is a simple calculator that enables you to perform simple maths operations and logic functions, and hardly uses system resources. It doesn't even require installation.

Download Hexit 1.5 in Softonic

I must admit I'm a very math-challenged person. Numbers were my main weakness at school and even nowadays I have problems to check if my change is correct when I'm shopping. But this doesn't mean I can't appreciate a tool like Math Solver.

This amazing program helps you solve all kinds of mathematical problems, from a simple addition to a complicated geometrical function. Not only does it solve the operation, but also draws a graph based on it if possible, and gives extra information about the generated graph. The program also includes an excellent database with constants and functions.

On the downside, I think Math Solver is not really comfortable to use. Solving expressions and representing functions take too many clicks. Also, as each piece of information is offered in a separate window, your desktop can get really messy. Besides, Math Solver keeps a history of previously entered expressions so that you can review them or reuse them at any moment, but unfortunately they're not saved when you quit the program.

Download Math Solver II 1.1 in Softonic

DeskCalc is a full featured adding machine with the functions you expect from a mechanical adding machine plus capabilities associated with a Windows environment. Features include a check-strip with comfortable text input per position, correction possibilities (rectifying, adding and deleting values), built-in formula interpreter, sales tax functions, cache (memory function), percentage calculation, EURO-conversion, floating point- and fixed point-calculation, subdivision into thousands, fast correction key, display of the results in task strip and window title line, printing with heading and date/time, Excel-export.

Download DeskCalc Pro 4.1.17 in Softonic

9Cal is designed to imitate real life traditional calculator. Let you feel like you are using a traditional one. You can choose to use mouse or keyboard as you are pleased. We want you to get and feel everything the same as you do without computer. Plus, you get more features such as new skins, sound effect, and paper tape.

Download 9Cal 2 in Softonic

Are you looking for a talking calculator which can talk in your own voice and your own language? If so, then this is yours. You can teach it to talk. It is a tiny, beautiful and easy to use calculator. Input from keyboard or from the Clipboard. Display the input and output in the same line.

The application can repeat talking, stop talking, talk the input key name, talk the expression, talk the result. It could talk in your own voice, if you replace the sound file according to the help document.

Download My Talking Calculator 3.65 in Softonic

Calctor is an advanced calculator with a simple interface. You have an input-region where you enter your calculations, and an output-region where the results of your calculations automatically appear while you're typing.

The complete solution to your scientific calculator needs.

Download Calctor 2.1 in Softonic

Unlike traditional calculators this easy-to-use software calculator displays all input data, making it easy to double check on data entered, data can also be randomly altered without having to re-input the entire calculation.

It also has full data saving, back up, and protection features, is capable of doing long and multiple calculations, and has Vat capabilities. Full Screen Calculator has many other features not available in traditional calculators.

Download Full Screen Calculator 3.1 in Softonic

Algebrus is meant for everybody who needs to do either scientific analysis or just doing school homework. It provides user with numerous mathematical and analysis functions as well as allows unlimited extension of its functionality by means of user-defined types, constants, operators, routines, and libraries.

Its extensibility is based on a built-in simple to learn and yet powerful programming language XPascal. Algebrus can be used both as a simple "evaluate-while-typing" calculator and as a powerful mathematical analysis application, which includes 2D and 3D graphic plots of functions and data, command line execution console, and a syntax-highlighted XPascal editor as a part of the integrated development environment (IDE).

Calculations include:

• Vector and matrix operations and functions
• 2D and 3D graphic plots of function and data
• More than 50 built-in mathematical functions
• User-programmed procedures and functions
• User-defined types and operators
• Solving of linear algebraic systems
• Solving of ordinary differential equations
• Inversing matrices, Fourier analysis
• Statistical data analysis

Using special Plotter tool, creating 2D and 3D graphic plots of functions requires no programming skills whatsoever. Evaluator tool allows simple and interactive evaluation of functions and procedures. It fully supports interfaced constant declarations that appear in the Evaluator as Parameters section

Download Algebrus 3.2 in Softonic

Extremely easy-to-use and accurate mortgage calculators are finally here. You will be able to calculate your total house payment including taxes and insurance without guessing or inaccurate results! You can also pre-qualify yourself, calculate closing cost, figure interest-only payments, estimate cash-to-close requirements, review FHA and VA loan programs, run refinance scenarios, print amortization schedules, plus much more. These calculators are designed to use local property tax, homeowner's insurance and closing cost figures from your state. No other mortgage calculator on the market does all this with such ease!

Download The Mortgage Toolbox 2.1.1.43 in Softonic

Excalibur is a freeware full-featured RPN-only calculator with 300 functions (scientific, business, conversion, computer science, physics, complex numbers, geometry, vectors, etc), full 4 or 8-level stack, international support for different comma and decimal point formats, programmable, macros, registers, custom button banks, etc. It's difficult to find a freeware calculator so powerful!

Download Excalibur 2.0 in Softonic

Random Number Generator will let you quickly generate thousands random numbers in seconds! You can choose from a wide array of options: integers vs. floating-point numbers, lower & upper limits, decimal places count, digits to use, negative numbers probability, hexadecimal & binary outputs, and much more! Screen, Clipboard, Text, CSV, XML, HTML, and XLS output formats are supported. Edit, undo/redo, sorting, printing, and statistics support.

Download Random Number Generator 1.00 in Softonic