10 Free Calculators · No Sign-Up · Instant Results

Run your rentals by the numbers.

Free, instant calculators for every landlord task — from screening tenants to analyzing investment returns. Built for independent landlords who manage their own properties.

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Free Landlord Companion Spreadsheet

Track your properties & tenants in one place — with direct links to every calculator right inside the file.

⬇  Download Free No sign-up · .xlsx

— Calculators

Most Popular 📅 Prorated Rent Calculator Calculate exact partial-month rent for move-ins and move-outs. Supports calendar-day, 30-day, and annual methods. Calculate → Tenant Screening 💼 Rent-to-Income Ratio Quickly check if a prospective tenant earns enough to comfortably afford your rental using the 30% income rule. Calculate → Investment 📈 Cap Rate Calculator Determine the capitalization rate on any rental property and compare investment opportunities at a glance. Calculate → Investment 💵 Cash-on-Cash Return Calculate your actual cash yield on invested capital after mortgage payments and operating expenses. Calculate → Investment 📊 Rental Yield Calculator Calculate gross and net rental yield to quickly compare the performance of multiple properties. Calculate → 🔐 Security Deposit Calculator Calculate recommended deposit amounts and check typical state limits to stay legally compliant. Calculate → ⏰ Late Fee Calculator Calculate flat-rate or percentage-based late fees with grace period guidance for your state. Calculate → 📋 Lease Break Penalty Estimate the financial penalty for early lease termination based on months remaining and lease terms. Calculate → 🏚️ Vacancy Loss Calculator Calculate how much rental income you lose during vacancies — by day, week, or month — to motivate faster leasing. Calculate → 🔑 Move-In Cost Calculator Total all move-in costs for a tenant: first month, last month, security deposit, pet fees, and prorated rent. Calculate →

About LandlordCalcs

LandlordCalcs is a free toolkit built for independent landlords and rental property investors who manage their own properties. Whether you own one unit or a small portfolio, these calculators handle the quick-math tasks that come up constantly — prorating rent, screening tenants, evaluating investment returns, and calculating move-in costs.

Every calculator is designed around real landlord scenarios, not textbook theory. Results are instant and work on any device. No account, no subscription, no paywall — just the numbers you need when you need them.

We also offer downloadable spreadsheet templates in our Etsy shop for landlords who want to track rent rolls, expenses, and property performance across their entire portfolio.