As the US prepares to elect a new president, how do you measure up to the most powerful people on Earth? Are you better educated than them? What about age - are you younger or older? Do you have more experience on the job?

Find out how you match up with 195 of the world's leaders based on data compiled by BBC Monitoring Research.

Age How old are the world's leaders? Most world leaders are currently aged between 50 and 70. The average age for a world leader is 62. Leaders in Middle Eastern and African countries tend to be older, while those in Europe tend to be younger. Eight out of the 10 youngest current world leaders are European. Did you know? On average, current African leaders are more than 10 years older than those in Europe. Education On the whole, world leaders are a pretty well-educated bunch. How do you measure up? How educated are the world's leaders? About 80% of world leaders are university-educated, with business, economics and law the most popular subjects. Eighteen world leaders pursued military studies of one form or another, with four attending the UK's Royal Military Academy at Sandhurst. But having no formal education did not stop Jacob Zuma becoming president of South Africa. Which country educated the most world leaders? Studied in the USA US universities taught 32 current world leaders, with graduates running countries as far afield as Mongolia, the Maldives and Micronesia. Studied in the UK In second place, the UK was the country of choice for 20 world leaders, 10% of all world leaders in our database. Studied in France Third on the list comes France, with 15 world leaders - especially those from French-speaking West Africa - opting to study in French universities. Did you know? Pope Francis is head of one of the world's largest religions but his initial calling was chemistry - he is a trained lab technician. Time in the job In most countries, elections and fixed terms make accumulating a long time in office very difficult, but some leaders have succeeded in staying in power for decades. How do you match up? How long have the world's leaders been in their posts? The average time the current crop of world leaders have been in their post is seven years. Oman's Sultan Qaboos Bin Said Al Said is the longest-serving current world leader in our database, having been in power for 46 years.

While he can't compete with Queen Elizabeth II's 64 years on the throne as head of state, the definition of a world leader for our database is the country's de facto political leader. Therefore Prime Minister Theresa May has been selected as the UK's leader. Not many come close to the 46 years Sultan Qaboos has spent in power, however nine African leaders have been in post for more than 20 years. Did you know? Fourteen current world leaders had not been born in 1970, the year Oman's Qaboos Bin Said al Said came to power. Summary How do you stack up?



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Methodology

Data on the age, education and tenure of leaders of 195 countries was compiled by BBC Monitoring Research and was last updated on 15 September 2016.

Leaders whose date of birth and educational attainment was unavailable were not included.

For this project, a country's leader was defined as the leader who in practice holds most political power in that country.

In the case of San Marino, where there are two heads of state with equal power in charge at the same time, one was selected at random.

In most cases the date where a leader was sworn in or assumed power is taken as the start date of their time in power.

Update

This page has been updated with data for the Finnish prime minister. Originally it had used data for the Finnish president.

Credits

Produced by Nassos Stylianou, Ed Lowther, Elisabetta Tollardo and John Walton. Data research by the BBC Monitoring Research team. Design by Tom Nurse, Gerry Fletcher and Zoe Bartholomew. Development by Steven Connor and Becky Rush.