Calculators

Educational calculators, with the assumptions in view.

Each tool is an illustration—not a recommendation or forecast. Start with the full Roth conversion estimate, use the focused tax-and-IRMAA calculator for one proposed conversion, or explore a supporting planning tool.

Primary Agent Roth experience

Roth conversion planning estimate

Organize household, account, income, Social Security, and lifestyle-need inputs into an educational retirement-tax planning picture.

Start the estimate

Retirement tax planning

Roth Conversion Tax-Bracket & IRMAA Calculator

Model how a taxable Roth conversion may move through the 2026 federal tax brackets and compare projected income with current Medicare IRMAA thresholds.

Open the calculator

Supporting calculators

Retirement planning

Retirement income calculator

Illustrate an income gap and how long savings may last under adjustable return, inflation, contribution, and planning-age assumptions.

Open the calculator

Compound growth

Rule of 72 calculator

Compare the Rule of 72 shortcut with exact annual compounding under a constant positive return assumption.

Open the calculator

Secondary planning tool

529 college savings calculator

Illustrate future college costs, projected savings, and a possible funding gap. This tool is useful, but separate from Agent Roth’s retirement-tax focus.

Open the calculator

Methodologies exclude many facts that may materially affect a real decision, including taxes, fees, investment variability, account rules, healthcare costs, and personal circumstances. Review the educational disclosures.