Mileage-Charts.comThe mileage chart for Africa can be downloaded here (24.8MB, updated 13th Nov 2018).
The full list of cities contained within this table can be found here: list of Africa cities.
Africa also contains the following tables:
Mileage charts are provided as Excel workbooks, and give driving distances in miles and kilometers, and travel times. As a bonus, every pair of cities within our charts have distances and travel times for both directions!