Ratio Calculator
Simplify ratios, solve proportions, and scale ratios to any size.
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Common Ratios Reference
| Ratio | Used For |
|---|---|
| 16:9 | HD video, widescreen monitors |
| 4:3 | Old TV, standard monitors |
| 1:1.618 (φ) | Golden ratio — art, architecture |
| 1:1 | Square format (Instagram) |
| 3:2 | DSLR camera photos |
| 1:3 | Blog header banners |