How far can a Nissan Leaf go on a single charge?

I'm thinking about purchasing a Nissan Leaf but I'm worried about running out of charge while driving. Can anyone give me an estimate of the maximum range I can expect on a single charge?

On average, a fully charged Nissan Leaf can go up to 150 miles.

I've found that my Leaf can go even further, up to 180 miles, when driven conservatively.

With regular charging, I've been able to drive my Leaf for several days without needing to charge.