Nauru:
about 0.1 times the size of Washington, DC
Navassa Island:
about nine times the size of The Mall in Washington,
DC
Nepal:
slightly larger than Arkansas
Netherlands:
slightly less than twice the size of New Jersey
Netherlands Antilles:
more than five times the size of Washington, DC
New Caledonia:
slightly smaller than New Jersey
New Zealand:
about the size of Colorado
Nicaragua:
slightly smaller than the state of New York
Niger:
slightly less than twice the size of Texas
Nigeria:
slightly more than twice the size of California