.com 
About this site and about me.
This site contains various calculators and converters for everyday use.
The site was created with aim to practice my HTML, CSS and JavaScript skills and besides to do something usefull to people.
calc7.com is developed, owned and operated by me Aleksei Patoka.
Let me know, if you have some questions, ideas or problems with this site. Write to me at (JavaScript must be enabled to view e-mail).