Top 5 Short-Term Rental (STR) Calculators for Airbnb Investors in 2026

You found a place on Zillow, the photos look right, and now you need one number before you get attached: what would it actually make as an Airbnb? That's the job a short-term rental (STR) calculator does, and there are more of them fighting for the answer than there used to be.

Quick disclosure before we go any further. We build BNBCalc, which is one of the tools people reach for on exactly this question. So instead of crowning our own product and calling it a review, we ranked the five best independent STR calculators for 2026, dropped ours into the table beside them, and told you honestly where each one wins. You can decide from there.

Prices are current as of September 2026, and every one links to its source. The harder part is the job itself: some of these tools estimate what a property will earn, others model the deal once you already have that number, and a few can also tell you which market to look in before you have an address at all, which matters if you haven't picked a city yet.

Knowing which kind you need is half the decision, so let's start there.

What to Look for in an STR Calculator

Not every tool here does the same job, and the fastest way to pick wrong is to assume they do. Five things separate them.

• Does it estimate STR revenue, or just model the deal? Rabbu, AirDNA, Mashvisor and BNBCalc pull Airbnb and Vrbo data and hand you a revenue number. DealCheck and Zilculator don't. You feed them the revenue figure and they build the financial case around it. Both kinds are useful, as long as you know which one you're holding.
• How transparent are the comps? A revenue estimate is only as honest as the listings behind it. The tools worth trusting show you those comps and let you throw out the ones that aren't really like your place. BNBCalc surfaces up to 50 active comparable listings per analysis, each with photos and a map pin, so you can audit the number instead of taking it on faith.
• Market level or property level? Market tools answer "is Chattanooga worth it?" Property tools answer "is this specific 3-bedroom worth it?" You usually need both at some point. AirDNA, Mashvisor, Rabbu and BNBCalc each cover both levels to some degree, so the real question is which level each one is built around, while DealCheck and Zilculator only ever see the one property.
• What's the pricing model? Free instant estimate, flat monthly subscription, or pay-per-report. It changes the math depending on whether you analyze one property a year or fifty.
• Coverage. Most of these are strongest inside the US. If you're buying abroad, that narrows the field quickly.

Keep those five in mind and the shortlist below sorts itself.

The Top STR Calculators for 2026, Compared

Here's the field at a glance. The five independent picks are ranked; BNBCalc is the one we make, so it sits in the table for comparison rather than in the ranking. All prices are as of September 2026.

Tool	Best for	Starting price	The catch
BNBCalc (ours)	Screening markets worldwide, then underwriting the financed deal with visible, editable comps	Calculator $30/mo or $199/yr; Markets $79/mo or $399/yr	Gross yield and estimated value are US-only
DealCheck	Modeling the full deal (buy-and-hold, flips, BRRRR)	Free tier; paid $10 to $20/mo	Brings no STR revenue data of its own
AirDNA Rentalizer	Market-level STR research, plus forward demand	Free tier; Market Research $125/mo, or $34/mo billed annually	Month-to-month pricing is steep
Mashvisor	Comparing long-term vs short-term on one property	From $39.99/mo, billed annually	No free plan, and accuracy needs checking
Rabbu	The fastest free Airbnb revenue estimate	Free	US only, gross revenue before fees
Zilculator	Branded PDF deal reports for agents	$17 to $29/mo, 20% off billed annually	No native Airbnb or STR data

BNBCalc: The One We Build

Full disclosure still stands, so let's get it out of the way: this one is ours. BNBCalc is built for two questions in a row: where to look, and whether the specific house still works with a loan on it.

For the first question there's BNBCalc Markets, its market finder, which covers around 2,400 markets in 157 countries, ranked by annual revenue worldwide and by gross yield in US markets. Open any one of them and you get every Airbnb and Vrbo listing on a map, amenity revenue-lift data and operator tracking, and in US markets you can also narrow to the top ZIP codes by gross yield and check housing figures (data from Redfin, a national real estate brokerage).

Markets is the where-to-look half, and since it includes the Calculator, the second half is already sitting in the same subscription.

Once a market makes your shortlist, the BNBCalc Calculator takes over. Enter an address and you get a revenue projection backed by up to 50 active comparable listings, all of them visible. An AI comp model grades each candidate on fit and shows you why it kept or rejected one, and you can override every pick. From there it runs expenses across roughly 30 fields, cash-on-cash return and other levered metrics, seasonality, and tax estimates including bonus depreciation.

That last part is the thread most STR calculators drop: the deal math and the revenue estimate in one screen.

Pricing, as of September 2026: the Calculator is $30/mo or $199/yr, and Markets is $79/mo or $399/yr, with a 7-day free trial and a 14-day refund window. The honest catch is that gross yield and estimated value are US-only, and as a brand we're younger and smaller than AirDNA. Still, pick BNBCalc when you want to go from a shortlist of markets to a financed underwrite without changing tools, and see and adjust the comps behind the estimate along the way.

1. DealCheck

DealCheck is the deal calculator, not the revenue oracle. It won't tell you what a property earns on Airbnb. Yet once you have that number, nothing here models the deal around it more cleanly: cash flow, cap rate, ROI, IRR, buy-and-hold, flips, even a wholesale exit, all with a genuinely good mobile app.

According to DealCheck's pricing page, the Starter tier is free for up to 15 saved properties, Plus is $10/mo and Pro is $20/mo, both a little cheaper billed annually, as of September 2026. Its limit is exactly its design: it brings no STR data of its own, so pair it with one of the estimators above. Pick DealCheck if you underwrite a lot of buy-and-hold or flip deals and want short-term rental to be one more scenario, not the whole tool.

2. AirDNA Rentalizer

AirDNA is the big one, and it earns most of the reputation. It runs the Rentalizer, a revenue estimator that covers Airbnb and Vrbo data for pretty much any global address. Its market data also goes deeper than the free tools, including forward-looking demand and future occupancy that most of this list doesn't touch.

The free tier gives you a limited Rentalizer look, and the paid plan is where it opens up: per AirDNA's pricing page, the Market Research plan runs $125/mo month-to-month or $34/mo billed annually ($400/yr), as of September 2026, and that $34 only exists if you pay the year up front. The Host tier that used to sit above it is gone from the page; what's there now is a per-listing dynamic pricing product and a contact-sales plan for property managers, neither of which is a calculator.

The catch is that month-to-month price, which stings if you only need it for one deal, and some investors find the address-level estimate needs a sanity check against the actual comps. Pick AirDNA when you want the longest market history behind your research and you'll use it enough to justify the annual plan.

3. Mashvisor

Mashvisor does something the others mostly skip: it puts long-term and short-term analysis side by side on the same property. So you can see whether a place pencils out better as an Airbnb or a straight rental. Add neighborhood-level analytics, heatmaps and an investment score, and it's a solid research seat for someone still deciding on strategy.

Pricing, from Mashvisor's plans page as of September 2026, starts at $39.99/mo for Lite billed annually, or $49.99/mo if you'd rather pay by the quarter, then $74.99/mo for the popular Standard tier and $99.99/mo for Professional, and there's no month-to-month option at all.

Two honest caveats: there's no free plan, and Mashvisor has drawn real criticism over the years about data accuracy, so treat its numbers as a starting point and verify the comps. Pick Mashvisor if the long-term-versus-short-term question is the one keeping you up.

4. Rabbu

When you just want a number in ten seconds, Rabbu is hard to beat. Its free Airbnb calculator takes any US address and returns projected annual revenue, ADR, occupancy and a set of comps, with the data refreshed weekly. It costs nothing and asks for no card. Rabbu makes its money on its off-market STR marketplace and its management services, which is why the calculator stays free.

The catch: it's US-only, the revenue is gross before Airbnb fees, cleaning and management, and there's little room to change the assumptions. So it works as a first-pass screen rather than a final underwrite. Pick Rabbu for the quick gut-check before you decide a property is even worth a closer look.

5. Zilculator

Zilculator is the odd one out, and it's here because plenty of investors and agents genuinely use it. It's a report builder more than a revenue estimator. Feed it a deal and it produces a polished, branded PDF analysis with comps and flyers you can hand a client or a lender, across rental, fix-and-flip and wholesale strategies, with MLS integration and an off-market marketplace attached.

Zilculator's pricing lists three paid tiers from $17 to $29/mo, each with a 7-day trial and 20% off if you pay annually, as of September 2026. The honest catch for this list is that it has no native Airbnb or STR data, so the short-term numbers have to come from somewhere else. Pick Zilculator if presentation matters as much as the math, especially if you're an agent selling the deal to someone else.

Which STR Calculators Also Help You Find New Markets?

Four of the six do, and they go about it differently. AirDNA's market pages carry the longest history in this group and cover US and international markets, so if you want to see how a market behaved in past years before you trust this year's numbers, that's where the depth is, on the paid plan.

Rabbu screens 3,500-plus US cities for free and gives each one an ROI Score built for exactly that first pass, though it stops at the US border and you can't change many of the assumptions. Mashvisor scores neighborhoods with heatmaps and its own investment score, US only and paid, and it's the one to open when you're still deciding between a long-term tenant and short-term guests.

BNBCalc Markets is the one we build, so weigh this paragraph accordingly. It ranks around 2,400 markets in 157 countries by annual revenue, and by gross yield in the US, then opens any of them to every Airbnb and Vrbo listing on a map and the amenities that lift revenue there, with the top ZIP codes by gross yield added in US markets. Markets includes the Calculator, so once a market makes your shortlist you can underwrite a specific house in it without switching tools.

Make sure to check the comps behind whichever tool you pick, because a market average tells you where to look and nothing about the house in front of you.

DealCheck and Zilculator aren't built for this job. Both start from a property you've already found, so pair either one with one of the four above.

How the STR Calculators Stack Up on Price and Data

Two threads run through that table. The first is what a tool actually gives you: Rabbu, AirDNA, Mashvisor and BNBCalc estimate short-term rental revenue from real listing data, while DealCheck and Zilculator take a revenue number you supply and build the financial case around it. So serious underwriting usually uses one of each, an estimator to get the top line and a deal tool or a property-level model to pressure-test the returns.

The second thread is how you pay. Rabbu is free and stays free, and DealCheck is the cheapest paid option at $10 to $20 a month with a real free tier underneath it. AirDNA and Mashvisor sit at the top on price, which is fair for the depth of their market data but hard to justify if you only analyze a property or two a year.

BNBCalc lands in between, and month to month it comes in well under AirDNA, whether you take the Calculator on its own or the full Markets plan. If you buy once and churn, lean on the free tools. If you analyze deals every month, the subscriptions pay for themselves fast.

Which STR Calculator Should You Choose?

So, matched to what you're actually doing:

• Screening markets before you commit to anything: BNBCalc Markets to rank them worldwide and, in the US, narrow to the top ZIP codes by gross yield, AirDNA for the deepest history behind a market, or Rabbu if you want a free first look.
• Underwriting one specific property you're serious about: the BNBCalc Calculator, because you can see and edit the 50 comps behind the estimate and model the loan in the same place. AirDNA's Rentalizer works too if you're already paying for it.
• Finding a new market and underwriting a house in it without switching tools: BNBCalc, since Markets includes the Calculator on one subscription.
• Deciding between long-term and short-term on the same house: Mashvisor, which shows both side by side.
• Running the full financial model on a buy-and-hold or flip: DealCheck, with the STR revenue number pulled from one of the estimators.
• An agent or wholesaler who needs a report that sells the deal: Zilculator.
• Analyzing one property, once, on a budget: Rabbu's free calculator, then DealCheck's free tier to check the cash flow.

Most active investors end up with two of these, not one. An estimator for the revenue, a deal tool for the math.

There's no single winner here, because they aren't all playing the same game.

Frequently Asked Questions

What Is the Best Free STR Calculator?

Rabbu's Airbnb calculator is the best free option for a fast revenue estimate on a US address, with no signup required. It returns projected annual revenue, ADR, occupancy and comps, refreshed weekly. AirDNA's free tier gives a limited Rentalizer look, and DealCheck's free Starter plan handles up to 15 saved deals once you already have a revenue number. For quick gross-revenue screening on a budget, Rabbu is the fastest way in.

Are STR Calculators Accurate?

They're estimates, not promises, and accuracy depends entirely on the comparable listings behind the number. A calculator that shows and lets you edit its comps is more trustworthy than one that hands you a single figure with no way to check it. Treat any estimate as a starting point. Pull two or three tools, compare the revenue ranges, and confirm the comps genuinely look like your property before you make an offer.

How Much Does an STR Calculator Cost in 2026?

It ranges from free to $125 a month, as of September 2026. Rabbu is free. DealCheck runs $10 to $20 a month with a free tier, and Zilculator $17 to $29. BNBCalc's Calculator is $30 a month or $199 a year, and Markets is $79 a month or $399 a year. Mashvisor starts near $40 a month billed annually, with no month-to-month option, and AirDNA's Market Research plan is $125 month-to-month or $400 a year.

Do I Need Both an STR Calculator and a Deal Calculator?

Often, yes. Estimators like Rabbu, AirDNA, Mashvisor and BNBCalc tell you what a property is likely to earn as a short-term rental. Deal calculators like DealCheck and Zilculator take that number and model cash flow, financing and returns. BNBCalc does both in one place, though plenty of investors happily pair a revenue estimator with a separate deal tool. Either way, never underwrite a purchase on the revenue number alone.

Can an STR Calculator Also Help Me Find a New Market?

Some can. AirDNA, Rabbu, Mashvisor and BNBCalc Markets all rank or score markets before you have an address, while DealCheck and Zilculator start from a property you've already found. BNBCalc Markets ranks around 2,400 markets in 157 countries by annual revenue, and by gross yield in the US, and it includes the Calculator, so you can underwrite a house in the market you picked without switching tools. Rabbu is the free option for US cities, and AirDNA has the longest history if you're paying.

Which STR Calculator Is Best for International Properties?

AirDNA and BNBCalc both cover non-US addresses. AirDNA's Rentalizer estimates global addresses, and BNBCalc Markets spans 157 countries with roughly four in five of its markets outside the US, while the BNBCalc Calculator takes an address abroad the same way it takes one in Ohio. BNBCalc's gross yield and estimated value metrics stay US-only. Rabbu, DealCheck and Zilculator are built around US data. If you're underwriting a property outside the United States, start with AirDNA or BNBCalc and check the local comps carefully, because coverage thins out in smaller international markets.

The Bottom Line

There's no single best STR calculator, and any list that says otherwise is selling something. The right pick matches the job in front of you: BNBCalc or AirDNA to screen a market, and Rabbu if you want that first look free; BNBCalc again to underwrite the specific deal; DealCheck or Zilculator to run the financial case; Mashvisor when the real question is long-term versus short-term. If you want to widen the search, our best Airbnb alternatives for investors guide covers more ground.

Whatever you land on, the habit matters more than the tool. Pull more than one estimate, look hard at the comps behind the number, and never fall for a property before you've run it. You can start with BNBCalc's 7-day free trial or with any of the free tools above.

The calculator is cheap. The mistake it catches is not.