Physics & Engineering

Aspect Ratio

Missing dimension from W:H.

W1 H1 New W2 (or leave 0) New H2 (or leave 0)

Educational estimates only. Not medical, legal, tax, or financial advice.

Guide: Aspect Ratio

Maintains W:H while solving for one dimension.

Enter original W×H and either new width or new height (other zero).

W2/H2 = W1/H1 → cross-multiply for missing side.

1920×1080 scaled to width 1280 → height 720.

Pixel-perfect streaming?

Codecs may require even dimensions; round accordingly.

Letterboxing?

This tool scales proportionally; black bars are added separately in players.

Anamorphic video?

Use display aspect after de-squeeze; pixel aspect may differ.