New Zealand completed their preparations for Saturday's opening match against Sri Lanka at Hagley Oval with a convincing win over South Africa yesterday.
Now it's down to the real business.
"Everyone's looking forward to it. It's what everyone's been waiting for now, from a player and public point of view.
"Once Saturday hits everyone will be up for it."
Asked if there was a thread of nervous tension in the group, Ronchi said: "There has to be; if you don't (have it) there's someone wrong with you."
New Zealand have six pool games to position themselves where they want to be for the quarter-finals.
"We've got to do what we need to and if you do we should come out where we want to be."