Compare net contribution at your current minimum nights vs a longer (or shorter) candidate, see the break-even conversion rate that keeps contribution flat, measure gap revenue at risk if orphan nights stay empty, and estimate gap-fill salvage if you drop min to the gap length ± an optional discount. Free, no signup, runs in your browser. Availability guidance last checked against Airbnb’s pages on 2026-10-03.
1 · Stay economics
Net contribution = Airbnb payout on (nights × ADR + cleaning − room discount) − true turnover cost. Host fee uses the same integer-cent rounding as our other tools (default 15.5% single fee).
2 · Minimum nights compare
3 · Gap nights at risk
Example: two reserved blocks leave 2 open nights between them, but your min is 3 — those nights cannot book until you lower min or customize trip length for those dates (Airbnb Resource Center, source 2).
4 · Gap-fill salvage (± discount)
Models booking the gap at the gap length with one cleaning fee collected and one true turnover cost. Set discount to 0 for full-rate salvage; try 10–20 only as arithmetic what-if — not a recommended promo.
Net contribution = host payout after the Airbnb host fee − your true turnover cost. Cleaning fee is assumed fee-on (same subtotal logic Airbnb describes for host-added fees). One turnover per stay.
Break-even conversion rate = net@current min ÷ net@candidate min. If you raise the minimum, this is the share of blocked shorter stays that must come back as longer stays for contribution to stay flat. It is a host estimate / planning number, not an Airbnb conversion or ranking metric.
Gap revenue at risk = ADR × gap nights (gross) and the room-only payout after host fee if those nights stay empty (no cleaning collected).
Gap-fill salvage = net contribution if the gap books at gap length ± your optional ADR discount. Restriction (lower min / custom trip length) usually comes before discounting in strategy write-ups — this tool only does the arithmetic.
Not modelled: search ranking, RevPAR lifts, taxes, guest-side fees, holding costs while empty, or probability that a gap fills. No invented occupancy premiums.
Not tax, legal, or listing-optimization advice.
Questions
Does lowering minimum nights help fill gaps?
Airbnb’s Resource Center says updating availability and lowering minimum trip length can help fill gaps, including custom trip length shorter than your default for certain dates (source 2). Help Center article 880 covers setting min/max nights and customizing by check-in day (source 1).
What is “break-even conversion”?
Pure arithmetic: net contribution at the shorter min divided by net at the longer min. Strategy guides use it so hosts can judge whether a higher min pays only if enough short-stay demand upgrades. It does not come from Airbnb as a published KPI.
Should I discount gap nights?
This page only shows salvage arithmetic with an optional discount %. Guides often say make the gap bookable under min-stay first, then consider discount. Enter 0 to see full-rate salvage.
Is my data sent anywhere?
No. The arithmetic runs in your browser; nothing you type is transmitted or stored.