do I need jr pass with this itinerary?

1. Toyoko-4 nights (jr pass helpful in city?)
2 hakone- 1 night (romance car) jr work for limited train?
3. Kyoto -4 nights , day trip to Nara. And here's the problem: possible day trip to Hiroshima .
4. 2 nights takayma
5 2 nights in Kanazawa.
6. Take bullet trains to narita for 5:00 pm flight

Should I buy a 7 day and activategoing to kyoto. Is it a horrible waste if we don't go to Hiroshima?

Thanks so much for any expert advice

Narita Airport is not accessed by shinkansen. You can take a bullet train from Kanazawa to Tokyo, and then the N'EX to Narita Airport.

You can work out if you need a pass yourself: look up the fares on Hyperdia, add them up yourself, and compare the total cost to the cost of a pass.

Or, use this calculator: http://www.aoimirai.net/japan/jrpass_calculator.html

A seven day pass wont work cause you have nine days away from Tokyo.

Should I buy a 7 day and activategoing to kyoto. Is it a horrible waste if we don't go to Hiroshima?

After a cursory look, it seems like a 14 day pass may be the better option as it would cover your entire trip. The itinerary as it stands seems to pay off so a Hiroshima side trip would end up being free. However it's not bad to skip Hiroshima if you don't feel like going.