Simple calculators for smarter money decisions.
Plan mortgages, loans, debt payoff, and savings with tools built for real-world clarity — not marketing math.
Calculator categories
Browse by what you're trying to figure out.
Estimate monthly payments, affordability, refinancing, and the true cost of homeownership.
Compare auto, personal, student, and business loans so you understand the full cost before signing.
Build a realistic payoff plan with snowball, avalanche, consolidation, and debt-to-income tools.
See how long a balance will take to pay off and how much interest you'll save with a smarter plan.
Project compound growth, savings goals, and emergency funds with realistic timelines.
Estimate take-home pay and align your spending plan with what you actually earn.
Featured calculators
Most-used tools, fully implemented and ready.
Estimate your monthly mortgage payment including principal, interest, property taxes, insurance, HOA, and PMI.
See the maximum home price you can responsibly afford based on income, debts, down payment, and current rates.
Calculate monthly savings, break-even point, and lifetime interest if you refinance your mortgage.
Mortgage calculator with extra payments to principal — see how much interest and time you save by adding an extra monthly principal payment.
Compare monthly payments and lifetime interest between a 15 year and 30 year mortgage at real rates.
Estimate your monthly car payment with down payment, trade-in value, sales tax, and fees built in.
Why mCalculator
We build the calculator we'd want to use before signing a 30-year obligation. No dark patterns, no upsells, no lead-gen forms gating your result.
- Honest mathEvery formula is documented on the page. Nothing hidden.
- Fast and lightweightInstant results, no spinners, no email gates.
- Built for decisionsPlain-language interpretation, not just raw numbers.
Latest finance guides
View all guidesA dollar-for-dollar comparison of 15-year and 30-year mortgages on the same loan, including the case for taking the 30 and investing the difference.
The exact difference between APR and interest rate, why lenders quote both, and which one to use when comparing loan offers.
The 3-to-6 month rule broken down by real risk factors — job stability, dependents, insurance, and where to actually park the cash.
This calculator is for educational and estimation purposes only. It does not provide financial, mortgage, tax, investment, or legal advice. Actual rates, payments, taxes, fees, insurance costs, eligibility, and loan terms vary by lender, location, credit profile, and market conditions. Always compare official offers and consult a qualified professional before making financial decisions.