Recently I came across InstaCalc, an online calculator. Initially I thought - “what the heck, who will start a site on a calculator?” But after using it for sometime I quickly realized that it is infact a brilliant idea!

Here are a couple of things that makes this unique,

1. Ultra fast calculator with immediate preview of results. You can also create and use equations.

2. You can create complex calculations and share them. For example, check out the Youtube Analysis.

3. You can embed calculations to a blog/site. InstaCalc can also generate charts and graphs. Embed feature is not yet available for graphs.

For more details on this cool tool, check out the InstaCalc feature tour.