What is the cost of putting my dog to sleep & having her cremated?

It all depends on the weight of the pet.

I don't have a dog but I need to know what this is all about and why it's being done

Depending on dogs weight and size, they go by weight... Bigger the dog more it costs. Not sure on how much it costs to put ur dog to sleep. You can buy an urn depending on size of ashes. So sorry to hear about ur dogs demise. Hope all goes well. Example:my cat was small, so I. bought an urn for around $100.Urns start at $95 Anna go up, Depends on the style of. urn.