What length chinos, if you’re short?

[Squirrelfruitandnutkin]

I have a pair of fat face st ives chinos which I got in the sale. I’m short so expected they’d be too long so knew I’d probably need to adjust them.

On the picture online they finish about a third up the model’s calf.
On me they are pretty much trouser length.

Where should I be aiming to take them up to?