The cost of registering a new domain depends upon the TLD (top level domain) being registered. TLD's are .com, .net, .org, etc. When you register a new domain, you have to select a TLD under which the domain will be registered, such as domain.com, .com being the TLD. Below you will find the pricing for each of the TLD's that can be registered.

.com 1 Year: $12.00 2 Years: $24.00 3 Years: $36.00 5 Years: $60.00 10 Years: $120.00	.net 1 Year: $12.00 2 Years: $24.00 3 Years: $36.00 5 Years: $60.00 10 Years: $120.00	.org 1 Year: $12.00 2 Years: $24.00 3 Years: $36.00 5 Years: $60.00 10 Years: $120.00
.biz 1 Year: $12.00 2 Years: $24.00 3 Years: $36.00 5 Years: $60.00 10 Years: $120.00	.info 1 Year: $12.00 2 Years: $24.00 3 Years: $36.00 5 Years: $60.00 10 Years: $120.00	.us 1 Year: $10.75 2 Years: $21.50 3 Years: $32.25 5 Years: $53.75 10 Years: $107.50