About MortgageCalcTools

Free, accurate mortgage calculators built for US homebuyers, refinancers, and real estate investors. Every result is instant, private, and based on standard financial formulas used by lenders.

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20+ Calculators

Payment, refinance, ARM, FHA, VA, HELOC, prepayment & more

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100% Private

All calculations run in your browser. No data ever leaves your device

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Lender-Grade Math

Standard amortization formulas cross-checked against Fannie Mae guidelines

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Always Free

No sign-up, no subscription, no hidden fees. Ever.

Our Editorial Team

MortgageCalcTools content is written and reviewed by a team of finance writers and mortgage specialists with experience covering US real estate, mortgage lending, and personal finance. Our editorial process prioritizes accuracy, plain-English explanations, and practical guidance that helps real buyers make real decisions.

Marcus Webb

Mortgage Content Lead

Marcus covers US mortgage markets, lending products, and home-buying strategy. He has written about residential real estate finance for over 6 years, with a focus on helping first-time buyers navigate loan types, rate environments, and the true cost of homeownership. His work draws on CFPB mortgage data, Freddie Mac weekly rate surveys, and direct lender research.

Sara Reyes

Calculator Accuracy Reviewer

Sara reviews all calculator logic and formula implementations before publication. She cross-checks amortization schedules, PMI calculations, and refinance break-even outputs against published lender tools and Fannie Mae / Freddie Mac guidelines to ensure accuracy across all loan scenarios.

Our Methodology

Every calculator on MortgageCalcTools is built to a consistent standard:

Formula sourcing

We use standard financial amortization formulas as defined by the Consumer Financial Protection Bureau (CFPB), Fannie Mae, and the Mortgage Bankers Association. No proprietary black-box algorithms.

Cross-verification

Each calculator result is compared against at least two independent sources — typically a major lender's published calculator and a CFPB reference tool — before we publish.

Rate data

Where we display current rate context, we reference Freddie Mac's Primary Mortgage Market Survey (PMMS), published weekly. All rates shown in editorial content are clearly dated and labeled as examples, not live quotes.

Regular review

Calculator formulas are reviewed quarterly. Blog content is reviewed annually or when significant regulatory or market changes occur (e.g., FHA MIP changes, new conforming loan limits, updated USDA income limits).

What We Cover

Mortgage payment calculators — monthly payment, amortization schedules, PITI breakdowns
Refinance calculators — break-even analysis, cash-out refinance, rate-and-term comparison
Loan type tools — FHA, VA, USDA, jumbo, ARM vs fixed, 15 vs 30 year comparisons
Affordability calculators — home buying budget, DTI ratio, down payment planning
Home equity tools — HELOC, home equity loan, prepayment impact
Blog guides — in-depth articles on lenders, rates, loan types, and home-buying strategy

About TUD Innovations

MortgageCalcTools is published by TUD Innovations OPC Private Limited, a technology company that builds free online tools across finance, legal, health, and utility categories. Our network includes 22 sites serving users in the US, UK, Canada, Australia, and India. We are funded by display advertising (Google AdSense) — we never sell your data, charge for tools, or hide content behind paywalls.

Contact Us

For editorial corrections, calculator errors, or partnership inquiries, reach us at: contact@tuditools.com

For advertising: ads@tuditools.com

Response time: 2–3 business days.

Disclaimer: MortgageCalcTools provides calculators and editorial content for informational purposes only. Calculator results are estimates based on inputs you provide and standard formulas — they are not mortgage quotes, commitments, or financial advice. Actual loan terms, rates, and payment amounts depend on your credit profile, lender, and market conditions. Always consult a licensed mortgage professional before making borrowing decisions. MortgageCalcTools is not a lender, broker, or mortgage advisor and does not originate loans.

Editorial Policy: All content published on MortgageCalcTools is reviewed for accuracy by the TUDI Editorial Team. Our calculators use publicly available formulas, and our blog articles are fact-checked against authoritative sources. We update content regularly to reflect current rates, regulations, and market conditions.

Contact: For questions, corrections, or feedback, reach us at contact@tuditools.com.

About the TUDI Editorial Team: Our team of developers and finance enthusiasts builds free tools that help thousands of users make informed financial decisions. We are part of TUD Innovations OPC Private Limited.