According to Wikipedia, the UK is 242,495 km², and Northern Territory is 1,420,970 km², so you can only fit it 5.86 times. The whole of Australia is 7,692,024

According to Wikipedia, the UK is 242,495 km², and Northern Territory is 1,420,970 km², so you can only fit it 5.86 times. The whole of Australia is 7,692,024 km², so you can fit the UK 31.7 times in that.