Skip to main content
Toolzum

Rent vs Buy Calculator

Compare buy net cost against rent total over a timeframe you set, from home price, down payment, mortgage rate, and monthly rent. Figures never leave your device — every calculation runs locally in your browser.

100% Local Browser Native

How to Use the Rent vs Buy Calculator

1. Fill the inputs

Enter home price, down payment, mortgage rate, monthly rent, and years.

2. Read buy vs rent

Check buy net cost against rent total and the monthly split.

3. Compare scenarios

Change one input and re-read — the delta between runs is the decision signal.

Similar Tools You Might Need

See all

Frequently Asked Questions

How is the break-even horizon computed?

Simply: buy net cost (mortgage payments plus down payment minus 3%-per-year appreciation) against rent total (monthly rent times years). Whichever is lower wins — lengthen the years to find the crossover.

What is the 5% rule?

Unrecoverable buying costs run ≈5% of home value yearly (interest + tax + maintenance, excluding principal). If annual rent is well below 5% of the price, renting wins financially. $400k × 5% = $20k/yr vs $26,400 rent → close call, decided by appreciation.

Does appreciation change the answer?

Dramatically, and the tool fixes it at 3% yearly on the home price. In flat markets renting usually wins under 7 years; in hot markets buying wins sooner — judge the fixed assumption against your market.

What about the down payment's opportunity cost?

Not modeled: the tool compares mortgage-plus-down-payment cost against rent total with no investing counterfactual. A $40k down payment invested at 7% becomes ~$79k in 10 years — weigh that yourself before deciding.

When using Rent vs Buy Calculator, is my financial data stored?

No. All calculations run locally in your browser. No amounts leave your device.

Last updated October 2026