Storage Unit Cost Calculator
The true cost of a self-storage unit over your rental term — rent, fees, insurance and cost per square foot.
How it works
total = monthly rate × months + admin fee + insurance × months · monthly all-in = total ÷ months · per sq ft = all-in ÷ area
The headline monthly rate is only part of the cost. Over the term you also pay a one-time admin fee and, usually, monthly insurance — so the true total is rent times months plus those extras. Dividing the total back by the months gives the real all-in monthly cost, and dividing that by the unit’s floor area shows the cost per square foot, a fair way to compare unit sizes and facilities.
Worked example
A 10 × 10 unit (100 sq ft) at $120/month for 6 months is $720 in rent. Add a $25 admin fee and $12/month insurance ($72) and the total is $817 — about $136 a month all in, or $1.36 per square foot per month.
Frequently asked questions
What fees do storage facilities add beyond the monthly rate?
A one-time admin or setup fee is common, along with required insurance (or proof of your own coverage), and sometimes a lock purchase. Many facilities also raise the rate after a few months of an introductory price, so ask how long the quoted rate holds.
Is storage worth it, or should I just replace the stuff?
Compare the total cost over your realistic term against the cost to replace what’s inside. Storing $500 of replaceable goods at $136 a month becomes a bad deal in under four months. Storage makes sense for genuinely valuable, irreplaceable or short-term items — not as a way to defer decluttering.
Which unit size do I need?
Rough guides: a 5 × 5 holds a closet’s worth, a 5 × 10 a studio’s worth, a 10 × 10 a one-bedroom, a 10 × 15 a two-bedroom, and a 10 × 20 a small house or a car. Cost per square foot usually falls as units get bigger, so don’t over-rent — but don’t cram either.
Related calculators
This calculator is for educational purposes. Double-check important results before acting on them.