A well-designed interface starts with a well-defined grid. The Gradground Grid Calculator helps you calculate a pixel-perfect grid for websites, landing pages, dashboards, responsive mobile layouts, and iOS applications.
Instead of manually calculating column widths, gutters, and margins, you can enter your layout dimensions and instantly see how the grid should be structured.

Create a Pixel-Perfect Layout Grid
A grid gives your design a consistent structure and makes it easier to align content across the entire interface.
For example, you can start with a 1440 px desktop layout, define your margins, choose 12 columns, and set a 24 px gutter. The calculator determines the resulting column width so you can use the exact values in Figma or your CSS layout.

This is especially useful when creating a complete website or landing page where multiple sections need to follow the same horizontal structure.
Use the Grid to Structure Individual Sections
The grid doesn’t have to be limited to the overall page layout. You can also use it to calculate the structure of individual blocks and components.
For example, imagine a dashboard with a chart section and several data visualizations. The same grid principles can help you determine exactly how wide each part of the interface should be.

A chart block might use a specific number of columns, while a weekly chart or financial chart can occupy a different portion of the same grid.
From Landing Pages to Mobile Apps
The same approach can be used for different screen sizes and products.
You can calculate grids for:
- Websites and landing pages
- Admin dashboards
- Mobile responsive layouts
- iOS and mobile applications
- Individual UI sections and components
For example, you might use a 12-column grid for a desktop landing page, then create a narrower grid for a tablet or mobile breakpoint. The calculator makes it easy to experiment with different margins, gutters, and column counts before committing to the final design.
How It Works
Enter your container width, number of columns, gutter, and margins. The calculator instantly determines the resulting column width and gives you the measurements you need to build your layout.
Try different values until the grid fits your design. Once you have the right combination, you can take those measurements directly into your design system, Figma file, or CSS.

A good grid removes guesswork from layout decisions and gives your design a consistent foundation from the first section to the last.