Tempe is about 65 times smaller than Ho Chi Minh City.

Ho Chi Minh City is approximately 6,773 sq km, while Tempe (map shows its 64 named neighbourhoods; the area covers the whole city) is approximately 104 sq km, making Tempe 1.53% the size of Ho Chi Minh City.
Tip: This to-scale comparison of Ho Chi Minh City vs. Tempe uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.