Declutter Keep-or-Toss Calculator
For the things you keep only to store them, this weighs the cost of holding on against letting go now and rebuying later — so the decision isn’t just a guess.
Keep it, or let it go?
Storing this costs more than selling it now and rebuying later if you ever need it. Sentimental or hard-to-replace items are the exception — this only weighs the money.
Are you storing it, or paying rent on it?
A surprising amount of what fills storage units and crowded closets is stuff we’d never actually rebuy at full price. A $40 side table can cost more than that in storage over two years — you’re quietly renting a thing you could replace in an afternoon. Putting real numbers on it makes the choice obvious and takes the guilt out of letting go.
Run the ordinary items through this first: furniture you’re “keeping just in case,” duplicate kitchen gear, outgrown gadgets. Save the sentimental and truly irreplaceable things for a different kind of decision — this tool is about the money only.
Frequently Asked Questions
How does it decide keep vs. let go?
It compares two paths in pure money terms. Keeping means paying to store the item for your chosen number of months. Letting go means selling or donating it now and buying a replacement later if you ever actually need one. Letting go wins when the storage cost you'd avoid, plus anything you'd recover selling it today, is more than the replacement price.
What is the break-even month?
It's the point at which the running total of storage cost equals the item's replacement price. Store it past that month and you've spent more keeping it than it would cost to simply buy again — a clear signal that, financially, it isn't worth holding on to.
How do I work out the item's share of my storage cost?
Take your unit's monthly rent and estimate the fraction of the space this item occupies. A single wardrobe in a 10×10 unit might be a tenth of the rent; a stack of rarely-touched boxes might be more. It's an estimate — the aim is a fair per-item cost, not accounting precision.
Doesn't this ignore sentimental value?
Deliberately, yes. The calculator only weighs money. Genuinely irreplaceable, sentimental, or one-of-a-kind items sit outside its logic — keep those regardless of what the numbers say. It's most useful for the ordinary, easily-rebought things that quietly fill storage units.
What if I'd donate rather than sell?
Enter zero for today's resale value. The tool then compares only the storage cost against the replacement cost, which is often enough on its own to show that letting a cheap, bulky item go is the sensible call.
A money-only estimate to guide a decision, not make it for you. It doesn’t weigh sentimental value, convenience, or the effort of selling and rebuying — factor those in yourself.