Responsive Breakpoint Calculator

Name: Responsive Breakpoint Calculator
Availability: InStock
Author: Daniel Agrici

Calculate responsive design breakpoints for common device screen widths and pixel densities. Enter values for instant results with step-by-step formulas.

Reviewed by Daniel Agrici, Founder & Lead Developer

Formula

Column Width = (Container - (Columns-1) × Gutter) / Columns

Standard breakpoints: 320px (mobile), 768px (tablet), 1024px (laptop), 1440px (desktop). CSS grid/flexbox column calculations.

Worked Examples

Example 1: 12-col grid

Problem:1200px container, 12 cols, 24px gutters

Solution:Column = (1200-11×24)/12 = 78px

Result:78px columns

Reviewed by Daniel Agrici, Founder & Lead Developer · Editorial policy