Sooeet is a free and simple to use website that offers conversion tools for a variety of measurements and units. You can find the categories available on the left. These categories range from weight and volume to temperature and torque. After clicking on a category you select a sub-calculator for units. Next you enter the value to be converted and click on the “Convert” button. Your required answer is displayed instantly.

Sooeet will prove to be a very helpful website for science and engineering students. It will also be very helpful for people who use the metric and SI systems of measurement together.

Features:

• A user-friendly website.
• Lets you convert and calculate measurements between units.
• Covers a wide variety of measurements.
• Displays answers in an instant.
• Very helpful for science and engineering students.
• Will benefit people who use the metric and SI systems both.
• Similar tools: Converticious, Conversion Tool and Unit Converter.

Check out Sooeet @ www.sooeet.com (via RedFerret) (by MOin from ThumbPress)

Using this extension couldn’t be easier: just highlight the measurement you don’t understand, right-click and you’ll see your conversion. Heck, this thing can even convert one currency to another.

If Converter comes across something it doesn’t understand it will give you the option of manually selecting what unit you’re trying  to convert to what. You can get a good understanding of the sorts of units Converter can handle by checking out their examples page.

You can even embed this service into your website, allowing everyone who visits to make use of it regardless of the browser they use. This can be a useful tool for your readers, so check it out.

Features

• Convert measurement units in your borowser.
• Firefox extension, or built into any website.
• Works with currency as well as units of measurement.
• Similar tools: UnitConverter.org, Converticious, Unit Converter, ConvertCenter and ConvertWorld.

Check out Converter @ mozdev.org

Features:

• Online unit conversion tool.
• Convert temperature, volume, distance, weight, area and  speed units (more units and convention options are coming).
• Clutter free and user friendly interface.
• No sign up and free.
• Similar apps: Unit Converter, ConvertCenter and ConvertWorld.

Check out Converticious @ www.converticious.com

Features:

• Displays a ruler on your monitor screen (in inches and centimeters).
• Select your monitor resolution to get a precise ruler for your screen size.
• Option to print out the ruler.
• Similar websites: Screen-O-Meter and Ruler.

Check out iRuler @ www.iruler.net

Select the type of metric you want (both imperial and metric scales are supported), ruler position (i.e. left, middle or right side of the screen) and click “show ruler”. That’s pretty much it. Check out the screenshot below for the sample.

You might be also interested in recently covered Screen-O-Meter. You can use this one to get a measure tape on you computer screen. I find it quite helpful when shopping on Amazon or eBay for gadgets.

Here are some of the other useful iPhone Apps from the same publisher:

- Morse Code – morse code generator and sender
- Compass – use iPhone as compass
- Budget – track and manage your spendings
- Call Checker – check whether it’s the right time to place a call
- Workout – track and monitor interval trainings
- Widgetop – get dashboard widgets on the iPhone
- iPhone Apps – stay up-to-date on newly added apps to the Apple directory
- Start Me Up – application launcher for your device

Check out iPhone Ruler App @ ruler.speedymarks.com

- measurement units: size, area, distance, time, velocity, mass, etc.
- file formats: documents (.DOC, .PDF, …), images (..JPG, .GIF, …), audio (.MP3, .WAV, .AAC, … ), and video (.WMV, .3GP, .AVI, …) formats.

How does it work ?

• 1. Enter an email address where you want to receive converted file.
• 2. Browse and select file you want to convert.
• 3. Choose the output file format and click convert.
• 4. Get an email with converted file.

If you want to convert a web video then simply copy and paste video address (ex. some Youtube video) and select desired output format (3GP, iPod….). You can receive converted files by email or download them from YouConvertIt.

Check out YouConvertIt @ www.youconvertit.com

OnlineConversion is a free to use website that offers various unit converters. These converters are categorized according to the type of units they correspond to e.g. density, area, time, force, etc. You simply click on a category and you are taken to its conversion tools. For each type of conversion, you enter the quantity and select the ‘from’ and ‘to’ units. Your result is instantly displayed.

Features:

• A user-friendly web service.
• Offers a suite of online conversion tools.
• Covers a wide variety of measurement types.
• Provides results instantly.
• Similar tools: ToolsGeek and FreeFileConverter.

Check out OnlineConversion @ www.onlineconversion.com (by MOin from Urban Savior)