Grid Calculator Basic Edition allows you to set up your grid- or non grid-based layouts for Adobe Photoshop and Illustrator. Weather you're working with identities, package design or creating websites, this software will help you get the result you're after easily.
The program is divided into two sections. In the second section you can easily generate layouts for your web design and also export .css files. If you're working with projects where you need to place elements in exact positions you could set up a non grid-based document and enter the value in the selected unit. Grid Calculator Basic Edition allows you to save presets (layouts) based on clients.