Short-term rental revenue calculator tools nearly all answer the same question: how much could this property earn from nightly bookings? Punch in an address, get ADR, occupancy and projected annual revenue. Useful for deciding whether to buy. But that number stops at the part of your income you control the least, and skips the part you control most: what each booking earns beyond the nightly rate.
That gap is widening. OTA commissions already take 15% to 30% of every booking according to NerdWallet, and managers capture under 5% of a guest's total trip budget as margin, per a PriceLabs analysis. The nightly rate is the slice you can move the least, and it is the one almost every calculator is built around.
What is a short-term rental revenue calculator?
A short-term rental revenue calculator is a tool that estimates a property's earnings by combining projected nightly rate (ADR), occupancy and available nights. The standard formula is ADR × occupancy × 365. Most tools pull comparable listings for an address and return an annual revenue figure, often with ROI or cash flow on top.
Almost every one stops at booking revenue. They estimate what the property earns as an investment, not what each stay earns once a guest has booked, which is where unclaimed margin sits.
Investment revenue vs revenue per booking
These are two different questions, calculated at different moments.
| Investment revenue | Revenue per booking | |
|---|---|---|
| What it measures | Whether the property pays off | What each stay earns beyond the night |
| Base formula | ADR × occupancy × 365 | Nightly revenue + extras sold |
| When you calculate it | Before you buy or list | During operation, booking by booking |
| How much you control | Little (market, purchase price) | A lot (what you offer, how you surface it) |
| Who measures it | Almost every calculator | Almost nobody |
The first one tells you whether to get into the business. The second shows you how much you leave on the table each time a guest books and you only charge for the night.
How to calculate your short-term rental revenue
Booking revenue is the easy part: ADR × occupancy × available nights. A property with a 120€ ADR, 65% occupancy and 365 available nights earns roughly 28.470€ a year from stays.
One caveat the better tools flag: scraped listing prices show asking rates, not booked rates, so they can run 20% to 40% high. Use booked-rate data where you can.
To judge profitability, subtract the costs: cleaning, supplies, maintenance, platform commissions, taxes and management. What is left is your net margin, and in short-term rental those operating costs are heavy.
That annual figure is the ceiling for most calculators. It is not the ceiling for your business.
The lever almost no calculator measures: revenue per booking
Every confirmed booking is a guest who has already decided to spend and is about to spend several days in your property. It is the highest willingness-to-pay moment in the whole cycle, and most hosts let it pass by charging for the night alone.
Extra revenue per booking comes from two places. Your own services (early check-in, late check-out, extra cleaning, parking, breakfast) sold at your prices and your margins. And third-party services (transfers, tours, experiences) surfaced through a marketplace, where you earn commission without operating anything.
Unlike the nightly rate, this income is yours. Where 79% of a booking goes to OTAs or the owner, upsell revenue stays under your control, per the PriceLabs analysis. On a 2.000€ booking, capturing 200€ extra moves the margin in a way the nightly rate rarely can.
And none of it shows up in a standard revenue calculator. If you can't see it, you don't manage it.
How Chekin's revenue calculator estimates your revenue per booking
Chekin's revenue calculator targets the number the others skip: how much more you can earn on the bookings you already have. You enter four inputs (units, ADR, occupancy and average stay), toggle the services you offer or plan to offer, and it returns an estimate of additional monthly revenue and RevPAR in seconds.
The numbers start from conservative attach rates, 9% to 15% of bookings buying at least one extra, with an average upsell value of 38€ in short-term rental and 55€ in hotels. It excludes seasonal peaks and direct bookings, counting only attach at check-in. They are sized to be the kind of figures a revenue manager can defend in a budget meeting.
Three levers do the work. Personalisation matches each offer to the guest profile, booking type and moment in the journey; personalised offers convert 25% more than generic ones. The catalog combines your own services with a third-party marketplace. And the AI-powered Smart Inbox answers guests across every channel, spots the receptive moments in each conversation and surfaces the offer without manual work.
A quick word on the limits. Chekin does not calculate your net investment return or handle your taxes; for that you need the cost side above. What it does is estimate, and then help you capture, the revenue your investment calculator never showed you.
Frequently asked questions
Booking revenue uses the formula ADR (average daily rate) × occupancy rate × available nights. For profitability, subtract operating costs: cleaning, supplies, maintenance, platform commissions and taxes. Beware scraped data, which shows asking prices rather than booked prices and can overstate revenue by 20% to 40%.
RevPAR (revenue per available room or unit) is ADR multiplied by occupancy, so it captures both price and how full you are. There is no universal benchmark; it depends on market and season. What matters is tracking it over time and lifting it through occupancy, rate and per-booking extras combined.
It depends on your attach rate and the value of each extra. With conservative rates of 9% to 15% of bookings buying one add-on, and an average value of 38€ to 55€ per upsell, a mid-sized portfolio adds several thousand euros a month with no extra bookings and no extra properties.
Most short-term rental revenue calculators are built for investment decisions, so they project nightly booking revenue from market comparables. Upsell income depends on what a host actively offers each guest, which sits outside that model. That is the gap Chekin's calculator is designed to fill for current operators.
No. Chekin's calculator estimates additional revenue per booking (upselling and RevPAR), not net investment return or taxes. For net profit you subtract all operating costs from annual revenue. Chekin covers the revenue lever those investment calculators leave out, on the bookings you already have.
Conclusion
A short-term rental revenue calculator answers half the question. It tells you whether the property pays off as an investment, but not how much each booking leaves behind. That second number, revenue per guest, is the one you actually control once commissions take the rest.
Knowing whether to buy is the easy decision; the harder, more profitable work is measuring and capturing the revenue every booking already puts within reach.
