How much does a storage unit cost? Estimate your monthly and total storage expenses with this free calculator — choose a unit size, add climate control and insurance, and see the full cost over your rental period.
Rates shown are typical US averages — pick a size, then adjust the base rate to match your local facility's quote.
Enter any monthly rate you've been quoted — the calculator applies climate, insurance, and admin fees on top of it.
Inputs: Size-based mode, 10×10 unit ($150/mo base), climate control ON, insurance ON, admin fee ON, 12 months.
Calculation: Climate = $150 × 25% = $37.50. Monthly total = $150 + $37.50 + $15 = $202.50. Grand total = ($202.50 × 12) + $30 admin = $2,460.00.
Inputs: Size-based mode, 5×5 unit ($60/mo base), climate control OFF, insurance OFF, admin fee OFF, 6 months.
Calculation: No add-ons, so monthly total = $60.00. Grand total = $60 × 6 = $360.00.
Inputs: Custom rate mode, $200/mo quoted rate, climate control ON, insurance ON, admin fee ON, 24 months.
Calculation: Climate = $200 × 25% = $50.00. Monthly total = $200 + $50 + $15 = $265.00. Grand total = ($265 × 24) + $30 admin = $6,390.00.
Note: These examples use typical national average rates. Actual prices depend on your city, the facility, unit size, and seasonal promotions — use your own quote for the most accurate result.
Typical base rates (US averages): 5×5 $60 · 5×10 $90 · 5×15 $115 · 10×10 $150 · 10×15 $190 · 10×20 $230 · 10×30 $300
Add-ons: Climate control +25% of base rate · Insurance $15/mo · Admin fee $30 one-time
| Unit Size | Approx. Capacity | Standard Rate | With Climate (+25%) |
|---|---|---|---|
| 5×5 | Small closet | $60/mo | $75/mo |
| 5×10 | One room | $90/mo | $112.50/mo |
| 5×15 | 1–2 rooms | $115/mo | $143.75/mo |
| 10×10 | One-bedroom apartment | $150/mo | $187.50/mo |
| 10×15 | 2-bedroom apartment | $190/mo | $237.50/mo |
| 10×20 | 3-bedroom house | $230/mo | $287.50/mo |
| 10×30 | Large house / vehicle | $300/mo | $375/mo |
Pick Size Based to start from typical US average rates for common unit sizes, or Custom Monthly Rate to enter a quote you received from a specific facility.
Switch climate control, insurance, and the one-time admin fee on or off, then enter how many months you plan to rent. The monthly total updates from the base rate plus any add-ons you selected.
The monthly total shows what you pay each month; the grand total multiplies it by your rental period and adds the one-time admin fee. The step-by-step list shows exactly how each number was calculated.
Every storage unit cost starts with a base monthly rate tied to unit size — from about $60 for a 5×5 to $300+ for a 10×30. This calculator uses typical US averages that you can edit to match your local facility. On top of the base rate, you can add climate control (usually +25% of the base rate), insurance (about $15/month), and a one-time admin fee (about $30 at move-in).
The math is simple: monthly total = base rate + climate cost + insurance, then grand total = monthly total × months + admin fee. The calculator walks through every step so you can see exactly where your money goes — and how much a longer rental period really costs.
Base rates run from $60 (5×5) to $300 (10×30). Choose the smallest unit that fits your belongings.
Climate control adds 25% — worth it for electronics, wood furniture, photos, and documents.
At $15/mo it's affordable, but check if your renters or homeowners policy already covers stored goods.
12 months of a $150 unit with add-ons is over $2,400 — always plan the full rental period, not just month one.
Location. Storage prices vary dramatically by market — units in large cities and coastal areas can cost 50–100% more than the same size in a rural town. Your facility's amenities (indoor access, elevators, security) also push rates up.
Unit size and add-ons. Size is the biggest driver of the base rate, while climate control, insurance, and admin fees add predictable percentages and flat amounts. Rental duration matters too: many facilities discount 6- and 12-month prepaid leases, but month-to-month rates are usually higher.
Get quotes from 2–3 nearby facilities — prices for the same size can differ by $50+/month.
Moving from a 10×15 to a 10×10 can save $40/month — about $480 over a year.
On a $150 unit, climate control costs $37.50/month. Skip it for metal tools, plastic bins, and seasonal decor.
Admin fees, lock purchases, deposits, and moving fees can add $50–$100 before you even rent.
Shop around and negotiate. Storage is competitive — many facilities offer first-month-free promotions, and a simple phone call can often beat the online price. Ask about long-term discounts before agreeing to a month-to-month lease.
Declutter before you store. The cheapest unit is the one you don't need. Donate or sell items you haven't touched in a year, and you may drop a full size class. If you only need a few weeks, compare storage against renting a trailer or using a portable container — sometimes far cheaper for short terms.
Compare quotes from several facilities and ask them to match or beat competitors' prices.
Prepaying 6–12 months often earns 10–30% off, but read the fine print on refunds.
Smaller unit, smaller bill. Selling or donating unused items can save you $100s per year.
First-month-free, free truck rental, or discounted moving supplies are common — use them to cut the total.
⚠️ Important Note: This calculator provides estimates for general information only. Actual amounts vary by jurisdiction, provider, and individual circumstances. Consult a qualified professional (attorney, accountant, or licensed advisor) for advice specific to your situation.
Before you sign a lease, get written quotes from two or three facilities, confirm which add-ons are mandatory, and read the fee schedule carefully — real numbers from your market beat national averages every time.