Pixel Ruler — Image Size & Ratio Calculator

Pixel Ruler helps designers quickly check if image sizes match standard web ratios, convert dimensions to pixels, and batch-resize multiple frames or objects — all without leaving Figma.

Ratio CheckerSelect any element on the canvas and instantly see its current aspect ratio. The plugin highlights which standard web formats it matches — exactly or approximately — and recommends the closest one. One click snaps the element to that ratio.

Supported ratios: 1:1, 4:5, 3:4, 4:3, 9:16, 16:9, 2:1, 1:2.Inch → Pixel ConverterEnter dimensions in inches and see the pixel equivalent across all screen types simultaneously: 96 dpi (standard screen), 144 dpi (Retina / HiDPI), and 300 dpi (print). Useful when working with physical print specs or device mockups.

Batch ResizeSelect multiple frames or shapes and resize them all at once. Two modes:— Exact: every object gets the same size— Proportional: each object is scaled to match the chosen ratio while keeping its own scaleAuto-namingAfter resizing, layers are automatically renamed to reflect their new dimensions (e.g. 1080×1920). Add a custom prefix — type "card" and layers become card-1080×1920, card-960×1200, etc.

Custom PresetsSave your own formats as reusable presets — as ratios (5:3), exact pixel sizes (1440×900), or inches (8.5×11). Presets are saved between sessions.