Pixels and crop are different.
Resize changes pixel dimensions. Crop changes which part of the image survives. Changing aspect ratio often means doing one, the other, or adding empty space.
Type, Layout & Effects
Generate type sizes using the golden ratio.
Input
Answer
Base 16px · ratio 1.618
Golden-ratio scales are dramatic; use the output as a starting point, not a rule.
Useful to know
Resize changes pixel dimensions. Crop changes which part of the image survives. Changing aspect ratio often means doing one, the other, or adding empty space.
A new shape cannot reveal content outside the original frame, and enlarging dimensions does not create genuine captured detail.
Judge it at the size it will actually be used. Typography and spacing are partly optical.
Pick the final destination first. A profile photo, print, story and website hero all want different shapes for a reason.