TFT

Grid Layout Calculator – Calculate Column Widths, Gutters & Margins for Web Design

Build perfect grid layouts with our Grid Layout Calculator. Enter your container width, number of columns, and gutter size to calculate precise column widths and margins — essential for responsive web design and print layout.

Common Grid Systems:

Grid Calculations

Enter grid settings and click Calculate to see calculations

Grid System Best Practices

  • 12 columns: Most flexible, divisible by 2, 3, 4, 6
  • Gutter width: 20-30px for desktop, 10-15px for mobile
  • Container margins: Match gutter width for consistency
  • Responsive: Use different column counts at breakpoints

Formula: Column Width = (Container - 2×Margin - (Columns-1)×Gutter) / Columns