Congo vs Tanzania

Tanzania is 2.77 times larger than Congo. Congo would fit into Tanzania about 2.8 times.

CongoTanzaniaCongo moved onto Tanzania · Equal-area projection
0.36×
Congo is 0.36× the area of Tanzania. Put the other way, Tanzania is 2.77× the size of Congo.
CongoTanzania
Area342,000 km²947,303 km²
Population6,484,43770,545,865
Density19 / km²74 / km²
CapitalBrazzavilleDodoma
RegionMiddle AfricaEastern Africa
CoastlineHas a coastHas a coast
Neighbours58

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Congo sits at about 1°S and is stretched to 1.0× its true area; Tanzania at 6° S is stretched to 1.01×. Here the two are distorted about the same amount, so Mercator gets this pair roughly right. The figure above uses the Equal Earth projection, where every square kilometre is drawn the same size.

Questions about this pair

Is Congo bigger than Tanzania?
No. Congo is 2.77 times smaller than Tanzania. Congo covers 342,000 km² and Tanzania covers 947,303 km².
How many times does Congo fit into Tanzania?
About 2.8 times: Tanzania has 2.77× the area of Congo.
Why do Congo and Tanzania look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Congo is drawn about 1.0× its true area there and Tanzania about 1.01×. For this pair the distortion is similar, so Mercator gets the comparison roughly right. Kartavera uses Equal Earth, where every square kilometre is drawn the same size.
Which has more people, Congo or Tanzania?
Tanzania: 70,545,865 people against 6,484,437. Density: Congo 19 per km², Tanzania 74 per km².