Passport Index compared 199 different passports and examined what citizens can travel the most countries without having to apply for a visa. According to Passport Index, the countries with the highest power rank are the United Kingdom and the United States of America, whose citizens can visit 147 countries without having a visa.
Belize's passports have a power rank of 47 or 44 (depending on how you use the list) and Belizeans can visit 75 countries without visa. Countries on the bottom of the list are Palestine, Democratic Republic of Sao Tome and Principe, Solomon Islands, Myanmar and South Sudan, they can only visit 28 countries visa-free.
http://www.passportindex.org