Aspect Ratio & Size Calculator
Crop Photos to Exact Size
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Get the exact crop size for any aspect ratio in seconds. Enter a width and a height, pick a ratio, and AspectCrop returns the precise crop box, center offsets, and scaled sizes — no math, no eyeballing, no guesswork.
Most resizing tools just squish an image to fit. AspectCrop works out the real center-crop box first — the exact pixels kept and trimmed — so you know precisely what the result will look like before you commit to it.
WHAT YOU GET
- The exact crop box in pixels for any ratio, plus center offsets so you know exactly what gets trimmed
- Every standard ratio one tap away: 16:9, 4:5, 1:1, 9:16, 3:2, A-series paper, golden ratio and more
- Fit and fill sizes scaled to 1080 px, so an image sits perfectly inside any frame
- Crop a real photo to any ratio and export the finished image to your camera roll or share sheet
- A saved history that keeps every size you have worked out within reach
- A reference cheat sheet showing which ratio each platform expects
PERFECT FOR
- Photographers matching prints, cameras, and darkroom paper sizes
- Video editors and creators sizing reels, stories, and YouTube
- Graphic designers laying out on golden ratio and A-series pages
- Social media managers hitting every platform's exact dimensions
WHY NOT JUST DRAG A CROP BY HAND
Dragging a crop box in the Photos app guesses the ratio and quietly loses pixels you can never get back. AspectCrop gives you the exact box and offsets first, so the crop is right the first time — every time.
PRIVACY
Everything runs on your device. No accounts, no ads, no tracking, ever.
FULL ACCESS
Premium unlocks cropping and exporting real photos, your saved history, and every preset. Choose a weekly or yearly subscription, or unlock everything forever with a one-time lifetime purchase.
Download AspectCrop and nail every aspect ratio the first time.
Terms of Use (EULA): https://web-levi.web.app/terms
Privacy Policy: https://web-levi.web.app/privacy-policy
Questions? tphuc.work@gmail.com
Ratings & Reviews
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Bug fixes and performance improvements.
Subscriptions
In-App Purchases
The developer, Phuc Pham, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Phuc Pham
- Size
- 6.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pixel Dimensions Weekly $2.99
- Print & Frame Fit, One-Time $29.99
- Social & Video Presets Yearly $14.99
- Copyright
- © 2026 Phuc Pham