AspectCalc calculates aspect ratios for photos or videos, for example.
If you enter a ratio of 16:9, you specify the width or height of the resolution and the program calculates the other side with a width of 1920 at 16:9 it would be the height 1080. The same is also possible in the other direction.
The app is still in the test phase.
App languages are:
German and English
New version of AspectCalc