The mongol empire was the largest contiguous empire but only covered 22% of the world whereas the British empire was between 25% - 30% and the largest the world has ever seen. The mongol empire covered what was, at the time, one of the least populous places on earth and at a time when there were very little resources or measurements of wealth bar the amount of animals and land owned. The British empire in contrast controlled some of the most populous places on the planet at a time when the industrial revolution (started in Britain) was in full effect leading to enormous generation of wealth. There is no comparison between the two.
The mongol empire was the largest contiguous empire but only covered 22% of the world whereas the British empire was between 25% - 30% and the largest the world has ever seen. The mongol empire covered what was, at the time, one of the least populous places on earth and at a time when there were very little resources or measurements of wealth bar the amount of animals and land owned. The British empire in contrast controlled some of the most populous places on the planet at a time when the industrial revolution (started in Britain) was in full effect leading to enormous generation of wealth. There is no comparison between the two.