Zillow Mortgage Calculator review
A free web calculator for comparing fixed-rate and ARM mortgage payment estimates.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Zillow Mortgage Calculator is a free web tool for people estimating payments on a home purchase. Buyers can enter a home price, down payment, ZIP code, loan program and interest rate, then review an estimated payment and itemized schedule. Its fixed and adjustable-rate scenarios make it useful for U.S. buyers comparing common loan structures, while its cost inputs help show how expenses beyond principal and interest affect an estimate.
The calculator supports 30-year fixed, 15-year fixed and 5-year ARM scenarios. It accepts a down payment as an amount or percentage and provides a ZIP code field and loan-program selection. Users can rely on the tool's property-tax estimate or enter an annual tax amount themselves; homeowners insurance, PMI and HOA costs can also be included. This range of inputs suits an early purchase comparison, though an estimate is only as useful as the assumptions entered. Buyers should check their assumptions and compare the resulting figures with loan terms they are considering.
Zillow's calculator focuses on purchase-payment estimates, with an itemized breakdown and schedule rather than affordability or refinance analysis. Zillow links to separate tools for those calculations, so buyers seeking a broader affordability assessment or refinance comparison will need to use another tool. Choose this calculator when a free, browser-based comparison of fixed and ARM payment scenarios is the goal; look elsewhere if those other analyses need to happen within the same calculator.
Zillow Mortgage Calculator pros and cons
- Where it wins
- Compares 30-year fixed, 15-year fixed and 5-year ARM scenarios
- Breaks estimates into payment components and a schedule
- Includes taxes, homeowners insurance, PMI and HOA costs
- Where it doesn't
- Does not provide affordability analysis in this calculator
- Does not include refinance scenarios in this calculator
- Estimates depend on the loan and cost inputs entered
Zillow Mortgage Calculator fact sheet, pricing and score →
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