Image scale percentage calculator

How to use the Image scale percentage calculator

What does the Image scale percentage calculator do?

Calculate output dimensions at a percentage scale; It applies this page-specific rule: each pixel dimension is multiplied by the scale percentage and rounded to a whole pixel.

Which inputs does this calculator use?

To calculate output dimensions at a percentage scale, enter Width, Height, Scale (%); keep every value in the same example; select Calculate when the values are ready; Start with a familiar case covered by this rule - Using the same percentage for width and height preserves the original aspect ratio - so the expected result can confirm the settings.

How should the calculator result be read?

For a result intended to calculate output dimensions at a percentage scale, using the same percentage for width and height preserves the original aspect ratio; read scale (%) together with the original width rather than as an isolated answer, and confirm that its units or structure match the intended use.

What calculation does this use?

When the goal is to calculate output dimensions at a percentage scale, each pixel dimension is multiplied by the scale percentage and rounded to a whole pixel.

Why might a real result differ?

When using the page to calculate output dimensions at a percentage scale, scaling up cannot restore detail that is absent from the source image.

Limits and accuracy

When using this calculator to calculate output dimensions at a percentage scale, scaling up cannot restore detail that is absent from the source image; the result is an estimate unless every source value is known; codecs, metadata, overhead, and variable bitrates can change an actual file; keep width until the output has been checked in its intended destination. For a repeatable check when you need to calculate output dimensions at a percentage scale, record Width alongside the final output and selected options.