buncha.tools
Width
:
Height
Aspect ratio
16:9
1920 × 1080 pixels
16:9
Resize (keep ratio)
×
Common ratios

Pairs well with

Add Text to Image
Add captions, watermarks, and text overlays to any…
AI Photo Extend
Outpainting AI extends a photo beyond its original…
AI Photo Restore
Fix old, scratched, faded or blurry photos. AI res…
AVIF to JPG
Convert AVIF files to JPG so they open everywhere …

About Aspect Ratio Calculator

Calculate and convert aspect ratios for images and video.

Like every tool on Buncha, this one runs entirely in your browser. There's no upload, no log, no record of what you've pasted or generated. Close the tab and the data is gone.

↳ Have feedback or found a bug? hello@buncha.tools
b
Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
240
Free tools
Across 14 categories
7
Visual editors
PDF · image · video · audio
32
Curated kits
By profession + lifestyle
17
AI tools
Powered by Claude API
Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.