About Wanjaaro – Free Financial Calculators

Wanjaaro is a collection of free, browser-based financial calculators built for anyone planning their money — from first savings goals to retirement, mortgages, and debt payoff. Our tools help you run the numbers with precision and confidence, whatever stage of your financial life you’re in.

Our Mission

Good financial decisions start with clear numbers. Yet many people rely on guesswork, outdated rules of thumb, or overly complex spreadsheets. Wanjaaro exists to make accurate financial calculations simple, fast, and accessible to everyone.

All our calculators run entirely in your browser. Your income, balances, and financial details never leave your device. We don’t store, process, or transmit your financial data — because your privacy matters as much as your financial planning.

What We Offer

Wanjaaro provides unique financial calculators, grouped into several categories:

  • Growth: Savings and investment tools including Compound Interest, Simple Interest, Savings Goal, Rule of 72, Dollar Cost Averaging, and more.
  • Retirement: Long-term planning calculators for 401(k), IRA, Roth IRA, retirement withdrawal rates, and FIRE.
  • Mortgage: Home-buying and homeowner tools for mortgage payments, rent vs buy, refinancing, affordability, and payoff planning.
  • Debt: Payoff strategy calculators including loan payoff, credit card payoff, debt snowball, debt avalanche, and amortization.
  • Insurance: Coverage-planning tools for life insurance, disability insurance, and term vs whole life comparisons.
  • Tax: Income tools covering tax brackets, take-home pay, capital gains, and self-employment tax.
  • Budgeting: Everyday money management tools including the 50/30/20 budget, net worth, debt-to-income, and emergency fund calculators.

Every tool is free to use, requires no registration, and works on any modern browser — desktop, tablet, or mobile.

Our Commitment

  • Accuracy: All calculators use industry-standard formulas.
  • Privacy: Zero data collection. Nothing is stored or shared.
  • Accessibility: No paywalls, no signups, no installation.
  • Transparency: Every tool shows its formula and assumptions.

Who We Are

Wanjaaro was built by a team of developers who believe that the right financial tools should be available to everyone — not locked behind expensive subscriptions, paywalled apps, or complex software.

If you have questions, feedback, or suggestions, please get in touch. We’re always looking to improve.