Instagram vs Reddit Ads image sizes 2026
A side-by-side look at Instagram and Reddit Ads creative sizes across 4 shared formats. Exact pixel dimensions and aspect ratios, with the identical sizes flagged.
Updated: 07.2026
| Placement | Reddit Ads | |
|---|---|---|
| Square same | 1080 × 10801:1 | 1080 × 10801:1 |
| Vertical / Portrait | 1440 × 18004:5 | 1080 × 13504:5 |
| Stories / Reels | 1440 × 25609:16 | — |
| Landscape | 1080 × 5661.91:1 | 1920 × 108016:9 |
| Carousel same | 1080 × 13504:5 | 1080 × 13504:5 (also 1:1, 4:3, 16:9; all cards must match) |
| Profile picture | 320 × 3201:1 | — |
2 of 4 shared formats use the identical size on Instagram and Reddit Ads. Design those once and resize for the rest.
Instagram vs Reddit Ads size FAQ
Can I use the same image for Instagram and Reddit Ads?
For formats where the sizes match you can reuse one file. 2 of 4 shared formats are identical, so export those once. Where they differ, resize to each platform's exact pixels to avoid cropping.
What is the difference between Instagram and Reddit Ads image sizes?
They overlap on some sizes and differ on others. Profile, cover and ad placements vary the most, and each platform crops and compresses its own way. The table above lists every size side by side.
Which is bigger, Instagram or Reddit Ads?
Neither is uniformly bigger. Each format has its own recommended resolution per platform. Compare them row by row above and use each platform's exact number.