Why are my Kalanchoe plants looking droopy?

It depends on the variety you have, but try a little water to spruce it up!

Kalanchoe requires bight light and water when the soil is dried out.

Hi Zoe, Here's a nice care guide that I think will be helpful! https://www.todayshomeowner.com/how-to-grow-flowering-kalanchoe/

Good luck!

Kalanchoe succulents like full sun (but usually have to get used to it slowly so they don't sunburn), and they don't like to be over-watered. Those are the first two things to consider in resolving the droopy leaves. They also like well aerated and well drained soil. That's the next thing to consider. Is your kalanchoe potted or in a garden outdoors? If it is potted, is it in just a potting soil or does it have a mix of peat moss and perlite ... or sand ... (60% / 40% respectively)? Here is a link from Clemson University that may help you:

http://www.clemson.edu/extension/hgic/plants/indoor/flowering/hgic1563.html