There are many countries you can travel visa free to with a Nigerian passport, however the time frame you are able to stay can differ greatly.
The easiest way to list all the countries you may visit visa free is to split them into continents. In the Americas you may access Barbados for six months, Dominica for 21 days, Grenada, Haiti, Saint Kitts and Nevis for three months and Turks and Caicos Islands for 30 days.
In Asia you can freely arrive in the following countries to which you will then be issued with a visa once in the country. In Azerbaijan, Cambodia, Laos, Macau and Timor-Leste you are granted with a 30 day visa. In Bangladesh you are granted a 90 day visa.
In Europe you may visit Kosovo for 90 days. In Oceania you may access Micronesia, Nauru, Niue, Vanuatu and Palau for 30 days, Cook Islands for 31 days, Tuvalu for one month, Samoa for 60 days and Fiji for four months.
In Africa Nigerian passport holders can visit the following countries visa-free; Benin, Burkina Faso, Cape Verde, Cameroon, Chad, Ivory Coast, Ghana, Gambia, Guinea, Liberia, Mali, Mauritania, Niger and Senegal.
A Nigerian citizen travelling on a Nigerian passport has visa free travel to 50 countries. The list can be found here: http://en.wikipedia.org/wiki/Nigerian_passport#Visa-free_travel
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