How much wider is Italy than California?
Italy measures 1,289 km (800.9 mi) north to south, and California measures 1,061 km (659.2 mi) north to south. That puts Italy at 1.22 times the north-south span of California: 228.1 km (141.7 mi) of difference, 22%. Put the other way round, California covers 82% of Italy on the axis both are judged on. Italy and California are both written in thousands of kilometres, and the 22% between them is the whole of the difference.
| Object | Real size | Axis measured | What the figure covers |
|---|---|---|---|
| Italy | 1,289 km 800.9 mi |
North-south span | Widest extent of the outline on that axis |
| California | 1,061 km 659.2 mi |
North-south span | Widest extent of the outline on that axis |
Both figures, Italy and California, 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 Italy 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 California above is scaled from measured distances instead.
What each figure covers
Italy. Italy is measured north to south, alps to the tip of the boot. The shape makes that axis obvious, which is rare in this set.
California. California is judged north to south, the axis along which it covers most of the American west coast. Its width varies so much that an east-west figure would describe nothing.
Italy and California 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, Italy at 1,289 km sits within a tenth of Cameroon at 1,269 km, Norway at 1,351 km and United Kingdom at 1,220 km. California at 1,061 km has Caspian Sea at 1,166 km, Paraguay at 924.1 km and United Kingdom at 1,220 km for company, within a quarter. Swapping any of those in for Italy would move its ratio to California by less than 10%.