This online calculator finds screen dimensions - height, width and area, given the diagonal value and aspect ratio.

The Relations between Mass, Length, Width, and Area Density Calculator allows you to calculate various properties of fabric based on the given parameters. The available calculations include determining the mass, length, width, or area density of the fabric.

This construction calculator calculates volume of four walls of a rectangular building by building length, width, height and thickness of a walls

This online calculator adjusts the second dimension of a picture/video, given the new first dimension, keeping the original proportions