Prorated Rent Calculator
Compare actual-days, 30-day, and 365-day prorating for move-in and move-out, with a printable breakdown and shareable link.
Free Tools Hub
Prorated rent in seconds — no sign-up.
Every calculator below is free, with no sign-up, and nothing you enter leaves your browser: each result is calculated on your device and shown with its working. Pick the question you have, get the number, and check it against your lease and the official source for your state.
All free rent tools
Rent Increase Cap Checker
Check a proposed increase against verified state caps where they exist — Allowed, Capped at $X, or Check official source.
Security Deposit Calculator
Estimate deposit limits, overcharges, and return deadlines under verified state rules.
Late Fee & Grace Period Checker
Work out grace periods and late fees under verified state rules, including Oregon's written-agreement rule.
Move-in Cost Calculator
Add up prorated rent, deposit, fees, and moving costs into one itemized first-month total.
Lease Renewal Comparator
Compare staying vs. moving over the months you choose, and find the break-even point.
3x Rent Calculator
Check whether your income meets a 3x requirement, compare 2.5x, and keep the separate 40x NYC annual test distinct.
Mid-Term Rental Calculator
Price a 1–12 month stay from a nightly or weekly rate, plus cleaning, fees, and utilities.
Quarterly Rent Calculator
Convert monthly rent to quarterly and annual totals, and compare quarterly vs monthly cash flow.
Rent Compare Calculator
Compare two rentals on total monthly and total lease cost — rent, fees, utilities, and parking.
Rent per Square Foot Calculator
Calculate rent per square foot, or total rent from a per-square-foot rate — both directions.
Rent Affordability Calculator
Maximum affordable rent at the 30% rule, 2.5x, and 3x, plus a rent-to-income check. Renter-only.
Net Effective Rent Calculator
Effective monthly rent after free months and concessions, with gross vs net explained.
Rent Increase Percentage Calculator
Pure math: dollar and percentage change from old rent to new rent, linked to the legal Cap Checker.
How to use this hub
- Choose the tool that matches your question — partial month, increase, deposit, late fee, move-in cash, or renewal.
- Enter only the figures from your lease or notice. No account is created and nothing is sent to a server by the tools.
- Compare the result with your lease method, then check the official source for your city and state before acting.
Frequently asked questions
Are these tools really free?
Yes. Every tool on this page is free, with no sign-up, login, paid package, or upgrade.
Which tool should I start with?
Start with the Prorated Rent Calculator for a partial month, the Rent Increase Cap Checker for a proposed increase, or the Security Deposit Calculator for a move-out.
Last verified: 2026-10-25. See Methodology for how rules are verified. This is general information, not legal advice. City ordinances may be stricter and may override state rules.