Rental calculators for everyday lease math

Landlord Math, without spreadsheet friction.

Fast calculators for prorated rent, move-in totals, rent increases, and late fees.

Visible formulas, plain-English output, and copy-ready summaries.

Common Landlord Calculations

Formulas are shown on every calculator.

Each tool includes assumptions and plain-language notes.

Estimate partial-month rent with clear day counts and a transparent calculation trail.

Bundle first-month rent, deposits, and fees into one copy-ready move-in total.

Compare current rent to a proposed increase in dollars or percent.

Estimate flat, percentage, or combined late-fee charges and total amount due.

This site is built for small landlords, property managers, and anyone who needs quick rent math without digging through a spreadsheet.

This site stays focused on quick rent math. It does not try to replace lease review, compliance checks, or full property management software.