Utility Tools
Aspect Ratio Calculator
Find any missing dimension from an aspect ratio, convert between common video and image ratios, and check what ratio your dimensions produce.
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Enter your width and height to find the ratio
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Or enter a ratio and one dimension to find the other
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Check common presets for social media, video, and print
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Use the results to correctly size your images
Find Ratio from Dimensions
Find Dimension from Ratio
Common Presets
16:9
YouTube, HD Video, Desktop
9:16
TikTok, Reels, Stories
1:1
Instagram Post, Etsy Listing
4:3
Standard Photo, iPad
4:5
Instagram Portrait Feed
3:2
DSLR Photo, Landscape Print
2:3
Portrait Print, Pinterest Pin
21:9
Ultrawide Monitor, Cinema
💡 Pro Tips
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16:9 is the universal widescreen standard — use it for YouTube thumbnails (1280x720px minimum).
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Instagram feed posts perform best at 4:5 portrait — it takes up more screen real estate in the feed.
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Etsy listing images default to a square grid — always keep key subject matter centered.
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For wall art prints: 2:3 ratio (e.g. 4x6, 8x12, 16x24) is the most popular selling format on Etsy.
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TikTok and Instagram Reels require 9:16 — design at 1080x1920px for full quality.
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Avoid letterboxing or pillarboxing in videos — crop to the native platform ratio instead.
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Pinterest pins perform best at 2:3 ratio (1000x1500px) — the tall format dominates feeds.