Compare aspect ratios, calculate crop dimensions, and see how your images fit different formats.
| Ratio | Decimal | Common Uses |
|---|---|---|
| 1:1 | 1.00 | Instagram square, album covers |
| 4:5 | 0.80 | Instagram portrait, 8×10 vertical |
| 3:2 | 1.50 | 35mm film, DSLR, 6×4 prints |
| 4:3 | 1.33 | Micro 4/3, most smartphones, old TVs |
| 5:4 | 1.25 | 8×10 prints, large format |
| 16:9 | 1.78 | HD video, modern displays |
| 9:16 | 0.56 | Stories, Reels, TikTok |
| 2.35:1 | 2.35 | Cinemascope widescreen |
Scenario: Converting a landscape 3:2 photo to Instagram square
Source: 6000×4000 pixels (3:2 ratio)
Target: 1:1 square format
Result: Crop 33.3% from sides, keeping 4000×4000 center portion (66.7% area retained)
If the ratios don't match, you'll need to crop (lose pixels) or add padding (letterbox/pillarbox). This calculator shows what you'll lose when cropping.
If possible, shoot wider and crop in post for more flexibility. But visualizing the final crop in camera helps with composition.
1:1 (square), 4:5 (portrait), or 1.91:1 (landscape). Portrait (4:5) takes up the most screen space in feeds.
The "Area retained" percentage shows how much of your original image remains. For example, going from 3:2 to 1:1 keeps about 67% of the original area.
Yes! Common print ratios are 3:2 (6×4"), 5:4 (8×10"), and 7:5 (5×7"). Choose your print format as the target to see how much cropping is needed.