Dimensions → Ratio
16 : 9
1.7778 : 1 • Landscape
Offline • Single HTML • No dependencies
Graphic Unit & Size Calculator
Aspect ratio, pixel & print resolution, graphic-unit conversion, and practical size catalogs for design, print, layout, photography, UI, and prepress. Numeric inputs accept dot or comma decimals and normalize to one decimal place.
300 PPI
Active pixel conversion density
Autosave ready
Aspect Ratio Calculator
Reduce width × height to its simplest ratio, or calculate a missing dimension from a target ratio.
Ratio → Missing Dimension
Height = 1080Uses the exact ratio values entered above.
Common HD
16:9
Cinema / Photo
3:2
Classic Photo
4:3
Square
1:1
Graphic Unit Converter
Convert physical and typographic units. Pixel conversion uses the active PPI/DPI value.
Convert Value
100 px = 8.4667 mmPixel size is resolution-dependent.
Quick Equivalents
Point ↔ pixel note: the radio buttons control typographic pt ↔ px reference only. 72 mode gives 1 pt = 1 px; CSS 96 mode gives 1 pt = 1.3333 CSS px. The separate PPI/DPI field remains available for physical px ↔ mm/cm/in conversion and print calculations.
Reference Formulas
1 in = 25.4 mm = 2.54 cm
1 pt = 1/72 in
1 pc = 12 pt = 1/6 in
1 Q = 0.25 mm
1 twip = 1/1440 in
px = inches × PPI
Pixel ↔ Print Size Calculator
Translate raster dimensions and print size at a chosen resolution. Great for checking export targets and print readiness.
Pixels → Physical Size
Millimeters
210 × 297 mm
Centimeters
21 × 29.7 cm
Inches
8.267 × 11.693 in
Megapixels
8.70 MP
Physical Size → Pixels
2480 × 3508 px≈ 8.70 MP at 300 PPI
Font Size Calculator
Build a modular type scale across Headline → Subheadline → Body text → Captions → Footnotes. Enter one anchor size and every level updates automatically.
Body text 16.0 px • Major Third 1.250 • 96 CSS px/in
Hierarchy
Pixels
Points
Step from anchor
Headline
Subheadline
Body text
Captions
Footnotes
Scale rule: each level above is multiplied by the selected ratio; each level below is divided by the same ratio. The visual preview auto-fits large scales, but the numeric px/pt values remain exact.
Size Catalog
ISO paper A0–A10 and B0–B10, common pass-photo references, R-series photo prints, and practical print formats. Pixel estimates update with the catalog PPI.
Custom Paper Size
Resolved physical size: 210.0 × 297.0 mm
Custom size updates the preview, margin validation, 1:1 viewer, pixel estimate, and SVG export. Pixel input uses the active Catalog PPI/DPI.
A4
210 × 297 mm
210 × 297 mm
Click preview → open 1:1 viewer • zoom + pan supported
Selected Size: A4
Size
210 × 297 mm
Ratio
1 : 1.4143
Pixels
2480 × 3508
Category
Paper A
SVG Frame Export
Export: blue paper frame + paper info text. The 2-line text is grouped inside a centered boundary equal to 1/2 of the paper’s shortest side. Margin lines export as one red #FF0000 path containing 4 full-span line subpaths. Margin values are in millimeters; margin stroke is adjustable from 1–5 px.
1 px
| Name | Category | Size | Aspect | Pixels @ 300 PPI | Notes | Action |
|---|
Size note: pass-photo sizes and R-series photo prints are different systems. The pass-photo entries are common references, while R sizes are common photo-lab print formats. Lab dimensions can vary slightly, and official ID/passport requirements should always be verified with the issuing authority.