New Zealand vs Japan: wider by how much?
New Zealand measures 2,599 km (1,615 mi) north to south, and Japan measures 2,310 km (1,436 mi) north to south. That puts New Zealand at 1.12 times the north-south span of Japan: 288.5 km (179.2 mi) of difference, 12%. Put the other way round, Japan covers 89% of New Zealand on the axis both are judged on. New Zealand and Japan are both written in thousands of kilometres, and the 12% between them is the whole of the difference.
| Object | Real size | Axis measured | What the figure covers |
|---|---|---|---|
| New Zealand | 2,599 km 1,615 mi |
North-south span | Widest extent of the outline on that axis |
| Japan | 2,310 km 1,436 mi |
North-south span | Widest extent of the outline on that axis |
Both figures, New Zealand and Japan, come from the Size It Up measurement set, one real-world size and one measured axis per object, last checked in September 2026; outline provenance is listed on the sources page.
Why this one is hard to judge by eye
The outline of New Zealand that most people carry comes from a world map, and every projection that keeps angles true stretches whatever sits far from the equator; the outline of Japan above is scaled from measured distances instead. A gap of 12% is invisible without a shared baseline: on the ground line above, Japan stops 288.5 km (179.2 mi) short of New Zealand.
What each figure covers
New Zealand. New Zealand is judged north to south, across both main islands. Laid out, the span is comparable to the length of Italy with the Alps added.
Japan. Japan is judged north to south, across the whole archipelago. Laid out that way it covers a range comparable to the American east coast.
New Zealand and Japan are both quoted as a north-south span, which is what makes the ratio above a like-for-like figure.
What else is about that size?
Measured the same way, New Zealand at 2,599 km sits within a quarter of Greenland at 2,651 km, Peru at 2,038 km and India at 3,161 km. Japan at 2,310 km has Peru at 2,038 km, Greenland at 2,651 km and Colombia at 1,961 km for company, within a quarter. Swapping any of those in for New Zealand would move its ratio to Japan by less than 25%.