there's four types of visas you can get when traveling to Zambia: 7-day transit visa, single-entry visa, double-entry visa or multiple-entry visa and tourist visas. This last one you can get at all major borders and airports like Kenneth Kaunda International Airport.
I'd add to that the fees for the visas and other types of visas, which are as follows: Single Entry: $50, Double Entry: $80; Multiple Entry: $80, Transit: $50 and Day Tripper: $20. if you have more queries is best you contact the Zambian immigration people at zambiavisa@zambiaimmigration.gov.zm or pro@zambiaimmigration.gov.zm
Zambia Visa at border Whatever visa you want you can get it at the border if you hold a UK passport. As far as I know, most nationalities can get the visa at the border but make sure you have a Yellow Fever Certificate before you travel there because they always check.