Free downloadable conversion calculators

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Talking Tom Cat. Clash of Clans. Subway Surfers. I'm easy to use and artfully designed to do things better than your desktop calculator ever did. I love saving you time and effort. I easily Copy and Paste values to and from other apps. I always remember what you're working on, so if you need to quit and go do something else, I'll have it all waiting for you when you come back. Even better, my Live Tile updates constantly, so you can always see your last result at a glance, right from your Start Screen.

I'm attractive and effective and I make great use of your Windows 8 display. If you feel like a change of scene, just tap one of the color theme buttons at the top of the screen.

Lastly, you can say goodbye to losing track of where you are in a calculation - I show you exactly what's happening at all times, in clear, elegant type. If you do make a mistake, use backspace to quickly correct it, instead of starting over Try me today and finally put that desktop calculator to rest! This app is ad-funded. For an ad-free experience, download the "Calculator!

Almost all of these unit converter tools operate the same way. All of these unit conversion freeware are absolutely free to use, so go ahead, take a look at the list and choose what is best for you. I like Calculatormatic and WiseCalc the most, as these unit conversion software let you convert units of various common and not so common measurement quantities. The interfaces of these freeware are easy to get along with. These software include large lists of units under each unit types. Calculatormatik is one of the best and free unit converter for Windows.

Its simple interface lets you easily select and convert units on your PC. You just have to select a measurement parameter, then select associated units from which you want to convert to another. You just have to select the measurement parameter from a long list.

For example, I have selected Area Converter. Now select the unit which you want to convert. I have selected Square Meter here. Select the unit to which conversion is to take place, which I have selected as Square Centimeter.

Now enter the value of known unit in the box above the list on UI to view the converted result. The list of measurement units that can be converted here is vast.

There are more than measurement unit types that can be converted. There are other tools also available apart from conversion tools. WiseCalc offers a free unit converter along with various other tools. Click on the Units tab to access the unit conversion options. Here you can select and change units of various measurement parameters. These measurement units include: Acceleration, angle, area, capacitance, charge, conductance, currency, density, distance, energy, etc.

Choose a measurement parameter, then on the panel at bottom of UI, select the conversion units. Enter value to get the converted result. Various calculation modes are also available, such as: standard, engineering, financial, scientific, angle, degree, and radian.

Multi-Convert is a simple software for conversion of units. Conversion parameters, such as Angle, area, length, mass, pressure, speed, and volume are available on the interface. Click on any of these parameters to view the From and To units. There are various combination of units available along with the list of multiplier for each conversion.

Click on a conversion type to open a new popup, where you can add a value to get converted value in desired units. You can also add parameters and units manually to this unit conversion software. Click on Add and define values and multipliers for the added units. Excalibur is a lightweight calculator software, which can also be used to convert unit on PC.

The interface looks like a calculator and has various modes available on it. One of the modes is Conversion. Click on the Conversion option, and few options for standard unit conversions will appear. Other modes available here are: scientific, statistics, business, geometry, comp Sci, physics, custom, etc. SoftmicaCalc is another multi purpose calculator with unit conversion option.

Look for the conversion calculator in the toolbar. Click on the Conversions option to access unit conversion parameters. You can choose to convert temperature, distance, speed, weight, volume, time, base, energy, etc. Under each category, you will find unit conversion options in the form on From and To. Also the UI design is just ugly. The following data may be collected and linked to your identity:. The following data may be collected but it is not linked to your identity:.

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App Store Preview. Screenshots iPad iPhone. Description Best instant unit converter for changing feet to inches, miles to kilometers, Celsius to Fahrenheit, and more. Different systems of measurement also developed over time in Asian countries. For example, in ancient India, a measure of weight called the "Satamana" was used, and was equal to the weight of gunja berries. The measurement of weight was based on the shi, which was equivalent to approximately pounds.

The Chi and Zhang were units of length equivalent to approximately 25 centimeters 9. The Chinese also developed a means to ensure accuracy through the use of a special size of bowl used for measurements that also made a specific sound when struck — if the sound was off pitch, the measurement was not accurate.

In , John Wilkins proposed a decimal system in which length, area, volume, and mass were linked to each other based on a pendulum that had a beat of one second as a base unit of length. In , Gabriel Mouton proposed a decimal system that was instead based on the circumference of the earth, an idea supported by other prominent scientists of the time such as Jean Picard and Christiaan Huygens, but that did not take hold for approximately another years.

By the mid-eighteenth century, it was clear to nations who traded and exchanged scientific ideas that standardization of weights and measures was necessary.