Are there any tools to estimate index size in MongoDB?

Question

I\'m looking for a tool to get a decent estimate of how large a MongoDB index will be based on a few signals like:

• How many documents in my collection

Answer 1

Another way to calculate is to ingest ~1000 or so documents into every collection, in other words, build a small scale model of what you're going to end up with in production, create indexes or what have you and calculate the final numbers based on db.collection.stats() average.

Does this make sense? :)