About

Focused tools for common landlord calculations.

Landlord Math Toolkit is designed around a simple idea: the fastest tool is often the most useful one.

Why this site exists

Real lease math is often simple in theory but messy in practice. Partial months, fees, and summary messages create friction that this site is meant to remove.

How the tools are built

Every calculator is designed to show the result, explain the formula, and make it easy to move that number into an email, text, or lease summary.