Calcmoolator’s is a free web application with easy-to-use financial calculators that makes it simple to calculate your Auto loan estimate, house rent vs. buy, mortgage payment, compare job opportunities, make educated financial decisions like whether to lease vs. buy. These calculators will save you money.

Calcmoolator provide over 50 free financial calculators, the great thing is, you don’t need to be a financial whiz to use ‘em! The Financial Calculators are also available on  the Android, iPad & iPhone

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Tendril is a free widget you can download to your Mac that helps to make you use less energy.

About Tendril Calculator
Find out how much your electronics, appliances and household devices are costing you. The Tendril Calculator tracks your monthly utility bill costs, kilowatt hours, and carbon footprint expenditure as you increase and decrease the usage of a particular device. You may be surprised to learn what sucks the most energy in your home and how adjusting your living habits can save you money and help the environment.

- Demonstrates the impact device usage has on energy costs, kilowatt hours and carbon footprint
- Calculates changes in your monthly bill and estimates cost
- Tracks costs based on individual electronics, appliances and household devices
- Determines energy costs based on your specific state and current monthly bill

Tendril is available on your Mac as a widget or on your iPhone. After a simple set up process you start getting reports on your energy usage around your home. Visit The official Apple site for the Tendril download here

The official BBC website provides the Booze Calculator, an online calculate tool that allows you to test the effects and costs of drinking alcohol. Just choose the sex and enter the number of glasses drunk (wine, beer, drinks, spirits) to give a series of results and indications. It also calculate the number of calories consumed, the expenditure made (in pounds), the time to dispose of the effects of alcohol. The results can be shared in social networks. Booze Calculator is a free tool that does not require registration.

<embed allowScriptAccess="never" src="http://downloads.bbc.co.uk/radio1/games/alcoholconverter/alcoholconverter.swf" quality="high" width="466" height="400"></embed><br /><a href="http://widgia.com/category/health/" target="_blank">More gadgets at Widgia.com</a>