Formula Library
Affordability Formulas
Formulas to calculate how much home, car, or rent you can afford based on your income and expenses.
Car Affordability Calculator
beginnerCalculate how much car you can afford based on income using the 10-15% rule.
=monthly_income * 0.10 Mortgage Affordability Calculator
beginnerCalculate how much house you can afford based on income, debts, and the 28/36 rule.
=monthly_income * 0.28 Rent vs Buy Calculator
intermediateCompare the true cost of renting versus buying a home over time.
=buy_costs - rent_costs