Area Calculation (see below)
"Sub-national HDI - Area Database - Global Data Lab".
hdi.globaldatalab.org.
Retrieved 2018-09-13.

Area calculation
Pixel sizes for provinces taken from traced maps: Northern = 28,547; Eastern = 81,548; Southern = 50,844; Western = 51,798; Kigali = 6,129
Total Pixel size for Rwanda = 28,547 + 81,548 + 50,844 + 51,798 + 6,129 = 218,866
=> Southern Province % of total area: 50,844 / 218,866 = 23.23%
Total area of Rwanda = 26,338 km² (10,169 sq mi)
"Rwanda".
The World Factbook.
United States Central Intelligence Agency.
4 March 2010.
Accessed 11 March 2010.

=> Area of Southern Province = 26,338 km² (10,169 sq mi) x 23.23% = 6,118 km² (2,362 sq mi)
Area Calculation (see below)
"Sub-national HDI - Area Database - Global Data Lab". hdi.globaldatalab.org. Retrieved 2018-09-13.
Area calculation
Pixel sizes for provinces taken from traced maps: Northern = 28,547; Eastern = 81,548; Southern = 50,844; Western = 51,798; Kigali = 6,129
Total Pixel size for Rwanda = 28,547 + 81,548 + 50,844 + 51,798 + 6,129 = 218,866
=> Southern Province % of total area: 50,844 / 218,866 = 23.23%
Total area of Rwanda = 26,338 km² (10,169 sq mi)
"Rwanda". The World Factbook. United States Central Intelligence Agency. 4 March 2010. Accessed 11 March 2010.
=> Area of Southern Province = 26,338 km² (10,169 sq mi) x 23.23% = 6,118 km² (2,362 sq mi)
Southern Province, Rwanda