Built by De Van Do, Because I Needed Better Tools
MyLoanCalcs started as a personal project -- a way to build the financial clarity tools I wished had existed when I was navigating my own mortgage and loan decisions.
De Van Do
Author & Site Builder, MyLoanCalcs.com
Why I Built This
I'm De Van Do. My background is in IT -- systems, infrastructure, and making complex processes work reliably. When I started researching mortgages and personal loans, I kept running into the same problem: the calculators available online were either too simple to be useful, buried under aggressive advertising and lead-capture forms, or produced results I could not verify because the formula was hidden.
As someone who solves problems for a living, that bothered me. A mortgage is likely the largest financial commitment most people will ever make. The tools people use to understand it should be transparent, accurate, and free of the noise that comes with sites that profit from steering users toward particular lenders.
So I built MyLoanCalcs. The goal was simple: a clean, fast, honest set of loan calculators with no sign-up walls, no lead forms, and no hidden agendas. Every formula is standard. Every result is explainable. And the educational content that surrounds each calculator is sourced from the same official publications that lenders and regulators themselves use.
How Our Calculations Work
Every calculator on this site uses the standard financial formulas that banks, credit unions, and government agencies use themselves. We do not round aggressively, apply hidden assumptions, or skew results in ways that would make borrowing look cheaper or more expensive than it is.
Core Amortization Formula
M = P x [r(1+r)^n] / [(1+r)^n - 1]Where M = monthly payment, P = principal loan amount, r = monthly interest rate (annual rate divided by 12), and n = total number of payments. This is the same formula used by the Consumer Financial Protection Bureau and published lenders.
For specialized calculators -- HELOC, refinance break-even, debt consolidation -- we apply additional standard calculations layered on top of the base amortization formula and clearly explain each variable on the page. PMI estimates use the standard range of 0.5% to 1.5% of the loan amount annually, consistent with Fannie Mae and Freddie Mac guidelines.
All calculations run entirely in your browser using JavaScript. Nothing is sent to a server. Nothing is stored. The math is the same whether you run it once or a hundred times.
Editorial Standards
Official Sources Only
Our blog and educational content cites primary sources exclusively -- the Federal Reserve, FHFA, HUD, Freddie Mac, Fannie Mae, CFPB, and the VA. We do not republish press releases from third parties, aggregators, or unverified secondary sources.
Standard Financial Formulas
Every calculator uses the industry-standard amortization formula and is verified against published lender and government methodologies. We show how each calculation works so you can verify the math yourself.
No Financial Advice
MyLoanCalcs provides calculations and plain-language explanations -- not financial, legal, or tax advice. Every page includes a clear disclaimer. For decisions specific to your situation, consult a licensed financial professional.
Our Commitments
Privacy First
All calculations happen entirely in your browser. We never collect, store, or transmit any financial data you enter. No accounts, no data harvesting.
Instant Results
No loading screens, no waiting. Every number updates the moment you type, using the same standard amortization formulas that lenders use.
Always Free
No paywalls, no subscriptions, no sign-ups required. Every calculator is free forever. We are supported by advertising, not by selling your data.
Our Trust Promise
- We will never sell, rent, or share your data with third parties for marketing purposes.
- Calculator formulas are reviewed whenever official rate tables or regulatory thresholds change.
- Blog content is sourced exclusively from official government and agency publications.
- All pages include a clear disclaimer that our content is informational, not financial advice.
- If you find an error, email us and we will correct it within 48 hours.
What We Cover
Our calculators cover the most common loan types that households encounter. Each one is paired with educational guides written in plain language -- explaining what the numbers mean, what affects them, and what to do with the results.
Our Network of Calculator Sites
MyLoanCalcs.com is one of several independent calculator sites built and maintained by De Van Do, each focused on a different subject: MyPctCalculator.com (percentages and everyday math), MyTaxCalcs.com (income tax estimates), Visual-Mortgage.com (in-depth mortgage tools), and MyInsuranceCalcs.com (insurance estimates). The sites share a common design and code foundation but publish independent, subject-specific content. We disclose this relationship in the interest of transparency; each site stands on its own, and none sells user data or earns loan-referral commissions.
Get in Touch
Found an error? Have a suggestion? We read every email.