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Aspect Ratio Calculator (Reference)
A handy reference for converting between common ad aspect ratios with guidance on fit vs. fill and safe zones.
Brief Definition
Use this reference to convert between common aspect ratios and understand how to adapt creative non-destructively.
Understanding ratio conversion
Ratios describe shape, not pixel count; you can express the same ratio at multiple resolutions. When converting, decide whether to fit (preserve all content with padding/extension) or fill (crop) based on the placement’s needs.
Why a calculator matters
Choosing ratios confidently speeds production and reduces errors. A calculator clarifies which exports you need for coverage and prevents low-quality letterboxing.
- Ensures correct exports per placement
- Prevents avoidable crops and UI conflicts
- Standardizes production across teams
How to Convert
- Choose the target ratio by placement
- Use fit (padding/extension) to avoid cropping important content
- Reposition text and logos within safe zones per ratio
Key Takeaways
- An aspect ratio calculator helps convert between width:height formats for different placements.
- Choose fit (padding) over fill (crop) to preserve important content when converting ratios.
- Build an export checklist for common ratios (1:1, 4:5, 9:16, 16:9) tied to your active placements.
- Store templates with safe-zone guides to speed production and reduce QA cycles.











