This question comes up more than any other on this site, and the answer genuinely changes depending on your specific living situation. Rather than one generic number, here's a real breakdown by room type, pulling together everything covered across this site's individual guides into one place.
The short answer
A genuinely complete strength and light cardio setup fits in as little as 36 square feet -- roughly 6x6 feet -- covered in detail in our dedicated 6x6 corner guide. Smaller setups are possible too; a drawer's worth of equipment (bands, ankle weights, core sliders) needs no dedicated square footage at all. The real variable isn't the equipment, it's how your specific room is laid out.
Studio apartment: no separate room
A studio doesn't have a spare room to dedicate, so the equipment priority shifts toward things that disappear or double as furniture, covered in our studio apartment guide. Think in terms of a flexible zone that resets to living space afterward, not a permanent gym corner.
1-bedroom or house: a dedicated corner
With a spare bedroom or even just a corner that can stay claimed, the 6x6 layout becomes realistic -- enough for a folding rack, adjustable dumbbells, and floor space for bodyweight work, all detailed in our 6x6 corner guide. This is the most equipment-flexible scenario covered on this site.
Shared apartment: negotiated space
Space here isn't just physical, it's social -- what's actually available depends on a conversation with a roommate, not just square footage, covered in our shared apartment guide. Equipment that lives entirely in your own room sidesteps this question, while shared-space equipment needs a different kind of planning.
Balcony: outdoor square footage you're probably not using
An often-overlooked space entirely -- weather-resistant equipment can use a balcony's few square feet for strength work that would otherwise need to be indoors, covered in our balcony equipment guide.
Under-bed and behind-door: space you already have
Storage space and workout space are two different questions, and often the storage answer is the one that unlocks everything else -- covered in our under-bed storage and studio storage hacks guides. Solving storage frequently solves the "do I have room" question at the same time.
