Golden Ratio Calculator Pro2026.2 - App Store

I made Golden Ratio Calculator Pro for one very specific moment: you are deep in a layout, canvas, frame or screen design, you know one side, and you just want the other number without stopping to do math.

Type in width or height, pick a ratio, and the app gives you the matching value right away. Already have both dimensions? Switch to Detect Ratio and the app tells you the exact ratio plus the closest named preset.

Choose from 12 built-in presets grouped by category - mathematical ratios like Golden, Silver and Bronze, photography standards like 3:2 and A-Paper, or video formats like 16:9, 21:9 and Cinema Scope. If none of those fit, dial in your own custom ratio with the slider or type it in directly. Save any custom ratio with a name and reuse it whenever you need it.

The rectangle preview updates as you go, the color shifts with the ratio, and the calculated value is copied to the clipboard automatically. Small thing. Surprisingly lovely when you do this often.

FEATURES
. Calculate width or height instantly from a chosen ratio
. Detect Ratio mode: enter both dimensions to identify the ratio and closest named preset
. 12 built-in presets grouped by Mathematical, Photography & Print, and Video & Film
. Presets include Golden, Silver, Bronze, Yamato, Square, A-Paper, Photo 3:2, Super 16, HD Video 16:9, Ultrawide 21:9, Cinema Scope and Old Television
. Save, name, and reuse your own custom ratios
. Enter any custom ratio with the slider or direct input
. Live visual preview of the proportion you are working with
. Flip orientation with one tap
. Automatically copy the calculated result to the clipboard
. Choose between 0 and 5 decimal places
. Home Screen Quick Actions for Golden, Silver, Bronze and Yamato
. Spotlight search for the built-in named ratios
. Supports light and dark appearance
. Works on iPhone and iPad

Speed up your design workflow today. Download Golden Ratio Calculator to get perfect proportions in seconds!

Version History - Save, name, and reuse custom ratios — your ratios persist across launches
- New ratio picker sheet with search and grouped sections including My Ratios
- Saved ratios are included in closest-match detection
- 12 preset ratios: added Square, A-Paper, Photo 3:2, Super 16, Ultrawide 21:9 and Cinema Scope
- Presets grouped by category: Mathematical, Photography & Print, Video & Film
- Expanded Spotlight search for quick access to any preset
- Detect Ratio mode: enter width and height to identify the ratio and see the closest named preset
- Seamless mode switch between Calculate and Detect Ratio on the main screen 2026.2 Jul 8 • Added support for iPad 2026.1 Mar 24 Added iPad support. 2024.1 02/27/2024 - Improved description of ratios
- Added more rations: Old television and HD-video 2023.1 10/15/2023 Small performance improvements. 2021.1 04/29/2021 - Finally added Dark Mode, the app will use your selected appearance
- The calculated value is automatically added to the clipboard for easier sharing with other apps
- The ratio selection box is no longer empty when no named ratios are selected
- Width and Height can be separately adjusted in any orientation 2020.1 07/20/2020 Squashed two small bugs. 1.4.3 02/15/2019 - Added large titles

FIXES:
- Fixed iPhone X scrolling bug 1.4.2 08/30/2018 - Better support for iPhone X
- Adjusted look and feel to align better with iOS 11

FIXES:
- Improved experience while rotating the rectangle quickly multiple times in sequence 1.4 11/05/2017 - The Width and Height labels now switch places when the rotate button is pressed
- Adjusted the size of the illustration rectangle 1.3.1 04/18/2016 This is the big “make use of iOS 9”-version:

- Added support for 3D Touch! All the ratios are now available as Quick Actions from the home screen. Press deeply on the Golden Ratio icon and gain access to your favourite ratio in only one click.

- The app can now be launched from Spotlight with a ratio preselected after searching for one of the built in ratios. 1.3 01/28/2016 - Added two more ratios: Yamato Ratio (1.414) and Bronze Ratio (3.303). 1.2 01/13/2016 Golden Ratio Calculator is now ready for iOS 9! 1.1.2 08/20/2015 Golden Ratio Calculator is now ready for iOS 9! 1.1.1 08/17/2015 Added some highly requested features:

- In addition to the actual value, the percentage of the calculated value is shown.
- The number of decimals can be changed in the newly added Settings-screen.
- The color of the illustration rectangle changes as the ratio slider is moved further from the golden or the silver ratio.
- Added link to the golden ratio Wikipedia entry.
- Golden Ratio Calculator can be rated and feedback can be given from within the app.
- And the app is now 64-bit!

If you enjoy Golden Ratio Calculator, please leave a review. It really makes a difference! 1.1 02/01/2015 Two small bugs squashed:

- Width and Height showed each others values in certain situations.
- Illustration rectangle is scaled down if it would otherwise overflow the screen.

If you enjoy Golden Ratio Calculator, please leave a review. It really makes a difference! 1.0.1 01/18/2015 1.0 01/07/2015