Aspect Ratio Calculator
Calculate aspect ratios, dimensions, and scaling for any resolution or format
Original Dimensions
Calculation Results
Aspect Ratio
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Decimal Value
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Width ÷ Height
Resulting Dimensions
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Visual Representation
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Common Resolutions for This Aspect Ratio
Enter dimensions to see common resolutions with matching aspect ratio.
📚 Aspect Ratio Guide
| Aspect Ratio | Common Name | Typical Uses | Example Resolutions |
|---|---|---|---|
| 16:9 | Widescreen | HDTV, YouTube, Streaming | 1920×1080, 1280×720, 3840×2160 |
| 16:10 | Widescreen | Computer monitors, Tablets | 1920×1200, 2560×1600 |
| 4:3 | Standard | Old TVs, iPads, Digital cameras | 1024×768, 1600×1200 |
| 21:9 | Ultrawide | Cinema, Gaming monitors | 2560×1080, 3440×1440 |
| 32:9 | Super Ultrawide | Gaming, Productivity | 3840×1080, 5120×1440 |
| Aspect Ratio | Common Name | Typical Uses | Example Print Sizes |
|---|---|---|---|
| 3:2 | 35mm Film | DSLR cameras, 35mm film | 6×4, 12×8, 18×12 |
| 4:3 | Micro Four Thirds | Compact cameras, Some DSLRs | 8×6, 12×9, 16×12 |
| 4:5 | 8×10 | Portrait photography | 8×10, 16×20 |
| 5:7 | 5×7 | Standard photo prints | 5×7, 10×14 |
| 1:1 | Square | Instagram, Medium format | 6×6, 10×10 |
| Platform | Recommended Ratio | Ideal Resolution | Notes |
|---|---|---|---|
| Instagram Feed | 1:1, 4:5, 1.91:1 | 1080×1080, 1080×1350, 1080×608 | Square, Portrait, Landscape |
| Instagram Stories | 9:16 | 1080×1920 | Vertical full screen |
| Facebook Post | 1.91:1, 4:5 | 1200×630, 1080×1350 | Link previews work best at 1.91:1 |
| Twitter Post | 16:9, 1:1, 2:1 | 1600×900, 1080×1080 | Multiple options supported |
| YouTube Thumbnail | 16:9 | 1280×720 | Same as video aspect ratio |
| Pinterest Pin | 2:3, 1:2.1 | 1000×1500, 1000×2100 | Vertical works best |
| Aspect Ratio | Common Name | Typical Uses | Notes |
|---|---|---|---|
| 1.33:1 (4:3) | Academy Ratio | Early cinema, TV | Standard before 1950s |
| 1.37:1 | Academy Sound | 1930s-1950s films | Slightly wider than 4:3 |
| 1.66:1 (5:3) | European Widescreen | European cinema | Common in UK and Scandinavia |
| 1.85:1 | Flat | North American cinema | Standard widescreen |
| 2.35:1 | Cinemascope | Epic films | Anamorphic widescreen |
| 2.39:1 | Anamorphic | Modern cinema | Slightly wider than Cinemascope |
🖼️ DPI/PPI Calculator
Current DPI/PPI
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Print Size at Target DPI
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Pixels Needed for Target
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DPI/PPI Guidelines
Web & Digital
72-96 PPI (standard screen resolution)
High-Quality Print
300 PPI (standard for magazines, brochures)
Large Format Printing
150-200 PPI (billboards, banners viewed from distance)
Photo Prints
240-300 PPI (for sharp, detailed prints)
Dark Mode
Note: This calculator provides aspect ratio calculations based on the dimensions you input. For precise printing or display requirements, always consult your printer or display specifications.