Why we built Calcvera
Financial decisions are full of numbers that are easy to get wrong: how long a credit card balance really takes to pay off, how much of your Social Security will be taxed, whether a HELOC beats refinancing, or how an income cliff can erase a health insurance subsidy. Many online calculators give a single number with no explanation, hide the assumptions, or ask for your email before showing results.
We think you deserve better. Every Calcvera calculator is free, requires no sign-up, runs privately in your browser, and comes with a plain-English explanation of the rules, the formula and a worked example — so you can check the math and act with confidence.
What we cover
We currently offer 37 calculators across 6 topics:
- Debt & Credit — Pay off credit cards and loans faster, estimate car and student loan payments, compare avalanche and snowball, and check the ratios lenders look at.
- Mortgage & Home Equity — Estimate mortgage and HELOC payments, how much home you can afford and how much equity you can borrow, and compare a cash-out refinance with a HELOC.
- Business Financing — Estimate equipment loan and lease payments and SBA 7(a) loan costs, with the APR and fees, so you can compare business loan offers on the same terms.
- Tax Deductions 2025–2026 — Estimate the 2025 tax law’s new deductions for tips, overtime, car loan interest and seniors, see your real tax savings, and plan Roth conversions.
- Savings & Retirement — Project your 401(k), work out required minimum distributions, see how compound interest grows your savings, and plan a child’s Trump Account.
- Health & Benefits — Estimate your 2027 Social Security COLA, your 2026 ACA premium tax credit, Medicare IRMAA surcharges and late enrollment penalties, and SSDI back pay.
Who we are
Calcvera is an independent publisher founded and run by Hassan Arslan, following the standards in our editorial policy.
How we build and check our calculators
- Primary sources first. Tax, Medicare, ACA and Social Security figures come directly from the IRS, CMS, HHS and SSA. Lending rules come from the CFPB, the Federal Reserve, Fannie Mae and HUD. Each page lists its sources.
- Transparent formulas. Every page explains the calculation and its assumptions, with a worked example you can reproduce.
- Tested code. The math behind every calculator is covered by automated tests that check results against known values — for example, standard amortization results and published premium tables.
- Dated reviews. Each page shows when it was last reviewed. We update figures when agencies publish new numbers, typically each fall for the coming year.
Read the full details in our editorial policy, and see every official figure we use on our methodology and data sources page.
Privacy by design
Calculations happen on your device. We never ask for your name, contact details or account information, and the numbers you type are not sent to our servers. See our privacy policy.
How we’re funded
Calcvera is free because it’s supported by advertising. Advertisers have no influence over our calculators or content, and we don’t accept payment to rank or recommend products.
Get in touch
Found an error, have a suggestion for a new calculator, or want to cite our tools? We’d love to hear from you at hello@calcvera.net or through our contact page. Journalists can find our key figures and citation details on the press page.