Madrid is about 6 times bigger than Red Deer.

Red Deer (map shows its 83 named neighbourhoods; the area covers the whole city) is approximately 105 sq km, while Madrid is approximately 604 sq km, making Madrid 477% larger than Red Deer.
Tip: This to-scale comparison of Red Deer vs. Madrid 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.