What is the separate size of the New Zealand North and South Islands?

What is the separate size of the New Zealand North and South Islands?
New Zealand's two main components are the North Island and the South Island, separated by Cook Strait. The North Island (44,281 sq mi; 115,777 sq km) is 515 mi (829 km) long and volcanic in its south-central part. This area contains many hot springs and beautiful geysers. South Island (58,093 sq mi; 151,215 sq km) has the Southern Alps along its west coast, with Mount Cook (12,316 ft; 3754 m) the highest point. And has some of the worlds most stunning scenery.

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What is the separate size of the New Zealand North and South Islands?