Vacancy Cost Calculator for Landlords

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Vacancy cost calculator

See what every day a unit sits empty is costing you in rent you won’t get back. Enter the rent and the days vacant — the estimate is based on your own numbers.

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The short answer

Last updated: July 2026

Vacancy cost is the rent you forgo for each day a unit sits empty — income you can’t recover later. Estimate it by turning monthly rent into a daily rate (rent × 12 ÷ 365) and multiplying by the days vacant. A $1,575/month unit empty 20 days loses about $1,035, before carrying costs.

Vacancy calculator

What an empty unit is costing you.

Every day a unit sits empty is rent you never get back. Here's the arithmetic on yours.

Monthly rent for the unit

Days vacant

0 days

90 days

Input-driven result

Your inputs

Formula

Result below

$1,553

At $1,575/mo, every vacant day costs about $52. 30 days empty ≈ $1,553 in rent you won't get back.

Vacancy cost at this rent

One vacant day

$52

30 vacant days

$1,553

One month of rent

$1,575

Estimate based on your inputs. Not a promise of results.

Assumption: typical vacancy — self-managed ~30–45 days vs. professionally managed ~14 — [NAMED SOURCE — verify before publish, see DEMO spec §4]. Not a promise that Aptoria fills a unit faster

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How it works

How this tool works.

A vacant rental doesn’t just feel expensive — it’s a measurable hole in your year. Every day the unit sits empty is a day of rent you can’t recover later, on top of the taxes, insurance, and mortgage that don’t pause when the tenant leaves.

This calculator turns that into a plain number: enter the monthly rent and how many days the unit has been (or might be) empty, and it estimates the rent forgone over that window. It’s an illustration built from the figures you enter — not a prediction of your actual vacancy.

Enter the unit’s monthly rent and drag the slider to the number of days it’s vacant.

The tool annualizes your rent to a daily figure (monthly rent × 12 ÷ 365) and multiplies by the days empty.

The result is the rough rent you forgo over that stretch — an estimate from your inputs, not a guaranteed or measured loss.

Use it to weigh how much a faster turnaround, or a better-priced listing, is actually worth to you.

Make the result useful

Use vacancy cost to set a decision threshold

Vacancy is not only a leasing metric. It gives you a dollar threshold for deciding whether a repair, a listing upgrade, or a modest concession is worth considering. Start with the rent you actually expect to collect, not an aspirational asking price.

Keep the result separate from carrying costs. Mortgage, tax, insurance, and owner-paid utilities continue while a unit is empty, so lost rent is the clean minimum—not the full economic cost.

Worked example

At $2,000/month, daily rent is about $65.75. A 14-day vacancy means roughly $921 of lost rent. A $350 listing improvement would need to shorten vacancy by a little over five days to offset itself on rent alone.

How to set a rental price →

Reduce tenant turnover →

Answers

Questions, answered plainly.

How is the daily cost calculated?

It annualizes your monthly rent and divides by 365, so a $1,575/month unit works out to roughly $52 a day. Multiply that by the days vacant and you get the estimated rent forgone. It’s arithmetic on your inputs, not a market forecast.

Does this include costs beyond lost rent?

No — it isolates the rent you don’t collect while the unit is empty. Carrying costs like utilities, taxes, and mortgage interest keep running during a vacancy too, so your true cost is usually higher than the number shown.

Can Aptoria fill a vacancy faster?

This tool doesn’t claim that. It sizes the cost of a vacancy so you can decide what a faster turnaround is worth. Aptoria helps with listing, screening, and leasing workflows, but the figure here is your own math — not a promised outcome.

Is the vacancy number a real benchmark for my property?

The days-vacant figure is yours to set. Any typical industry ranges we mention are attributed context, not a measurement of your specific unit.

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Built by a landlord who's done every one of these jobs by hand.

Aptoria was built by an owner-operator managing a Brooklyn portfolio — the 11pm calls, the awkward rent texts, the April receipt-pile — not by a software team guessing at the problem.

Stop sizing the problem. Let the agent run it.

Free for your first unit. The calculator gives you the number; Aptoria does the work — and you approve what matters.

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