About RetireCalculator.net
RetireCalculator.net is a set of focused retirement-planning calculators that run entirely in your browser. It is published by Sumvia, the team behind the Sumvia.net calculator network, and it exists to answer the concrete arithmetic questions that come up between "should I save more?" and a meeting with an advisor.
What the site covers
The tools span the full arc of retirement math, not just generic compound interest. On the accumulation side: nest-egg projections with inflation-adjusted drawdown, 401(k) growth including employer matching, Roth IRA growth, plain compound interest, and savings-goal planning. On the distribution and fixed-income side: required minimum distributions (RMDs) computed from the IRS Uniform Lifetime Table, an inflation calculator for translating dollars across years, and a CD calculator for ladder and maturity planning. A planning-and-protection group rounds out the set with a DIME-method life-insurance estimate and a net-worth statement of assets against liabilities. Each calculator has its own page with a worked example and an FAQ.
Who it serves
The calculators are built for people doing their own first-pass planning: someone comparing a Roth contribution against a traditional 401(k) match, a retiree checking this year's RMD before calling their custodian, or a saver testing whether a monthly contribution actually reaches a target by a chosen age. They are deliberately simpler than advisor software — every assumption is a visible input, so you can see exactly which lever changes the outcome.
How IRS-year data is kept current
Some of this math depends on law, not just algebra. The RMD calculator uses the IRS Uniform Lifetime Table effective for distributions in 2022 and later, with divisors checked value-by-value against IRS Publication 590-B, and it reflects the SECURE 2.0 start-age schedule. Automated tests pin those published values, so they cannot be changed accidentally; when the IRS or Congress changes a table, an age, or a threshold, the constants and their tests are updated together, and the page copy states which rule year applies.
Tested calculation logic
Every calculator is implemented as small, typed functions with automated tests checked against known reference figures (for example, $10,000 plus $500 a month at a 7% return for 30 years grows to about $691,150). The worked examples in page copy are generated by the same code that powers the calculators, so the documentation cannot drift from the implementation. See the methodology and accuracy page for the full approach.
Browser-native, no accounts
Nothing you enter — salaries, balances, ages, contributions — is transmitted, logged, or stored. All calculation happens on your device, there is no registration, and the tools stay usable on a flaky connection once the page has loaded. This is a deliberate design constraint of every Sumvia site.
Not financial advice
These calculators provide general educational estimates. Projections assume a constant rate of return and cannot model market volatility, your tax bracket, Social Security timing, or spousal beneficiary rules; the RMD tool covers the common Uniform Lifetime Table case, not every situation. None of it is financial, tax, or legal advice — confirm any consequential figure with a licensed professional or the IRS's own publications before acting on it.
Get in touch
Found a problem, or want to suggest a calculator? See the contact page — reports of suspected calculation issues are especially welcome and are treated seriously.