Thanks for the A2A. The short answer is it depends what devices you have. Here Ill assume that by iCloud you mean iCloud Photo Library s . If it not the case please leave ament below. Using an iPhone or iPad If you only have an iPhone or iPad at your disposal then the best is to use the Google Photos app s on iOS If needed activate iCloud Photo Library on your iOS device Toggle iCloud Photo Library 1 Install Google Photos s Tap on the Photos view Tap on all the other photos ordered-list if you have multiple s (where $ is the number of selected s 52 8 If you have a lot of pictures to upload I rmend to do it in small batches as well. Hope this helps!