Know one side, get the other instantly. Use golden, silver, bronze, Yamato, HD video, old TV, or any custom ratio, then copy the result.
I made Golden Ratio Calculator++ 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. Start with the golden ratio, or jump to Silver, Bronze, Yamato, HD Video (16:9) and Old Television (4:3). If none of those fit, dial in your own custom ratio with the slider or type it in directly.
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
• Built-in presets: Golden, Silver, Bronze, Yamato, HD Video and Old Television
• 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
I build my own canvases and like to use the four ratios preset in this app. (Hint: Tap on the lower right empty box to choose one of the four ratios.). This app also gives calculations for any other random ratio by using the slider while also giving an immediate visual of the shape proportions. Multiple decimals are available in settings. All functions are quick and easy. This is the perfect app!
Unusable
timmy tum tum
The swapping between long and short side is broken
Developer Response
I’m sorry, but I’m unable to reproduce your issue. Can you elaborate through email?
• Added support for iPad
Version 2026.1
The developer, Runar Ovesen Hjerpbakk, 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.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Dark Interface
Differentiate Without Color Alone
Information
Seller
Runar Ovesen Hjerpbakk
Size
2.9 MB
Category
Utilities
Compatibility
Requires iOS 26.2 or later.
iPhone Requires iOS 26.2 or later.
iPad Requires iPadOS 26.2 or later.
Mac Requires macOS 26.2 or later and a Mac with Apple M1 chip or later.
