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 Yet many people rely on guesswork, outdated rules of thumb, or overly complex spreadsheets.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 170+ unique financial calculators, grouped into eight master categories:

  • Growth: Savings and investment tools including Compound Interest, Simple Interest, Savings Goal, High Yield Savings, Rule of 72, Dividend Reinvestment, Dollar Cost Averaging, and Investment calculators.
  • 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, payoff planning, closing costs, down payment, and mortgage points.
  • Debt: Payoff strategy calculators including loan payoff, credit card payoff, debt snowball, debt avalanche, amortization, student loan payoff, debt consolidation, and balance transfer.
  • Insurance: Coverage-planning tools for life insurance, disability insurance, term vs whole life comparisons, deductible break-even analysis, home/renters insurance, and umbrella coverage.
  • Tax: Income tools covering salary, hourly pay, overtime, take-home pay, tax brackets, capital gains, and self-employment tax.
  • Budgeting: Everyday money management tools including the 50/30/20 budget, net worth, debt-to-income, emergency fund, subscription tracking, sinking funds, and zero-based budgeting.
  • Investing: Risk-management tools for position sizing across stocks, crypto, options, and futures, plus risk/reward ratio and Kelly Criterion 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 I Am

I’m Sohail Anwar, a software engineer with over a decade of hands-on experience — since 2013 — building enterprise-grade applications for the finance, banking, and insurance industries. My work has covered mortgage underwriting, loan repurchase tracking, insurance claims processing, and regulatory compliance systems, built with Java, Spring Boot, and modern web frameworks for institutions that rely on these systems handling real transactions at scale.

That background is exactly why Wanjaaro exists. Years spent working directly with the underlying logic behind mortgages, amortization, claims, and financial workflows convinced me these calculations should be transparent, accurate, and available to anyone — free, with no subscription or paywall in the way.

Wanjaaro isn’t a financial advisory service, and nothing here is personalized financial advice — it’s a set of precise, formula-based tools built by someone who has spent years engineering these exact systems professionally. If you’re making a major financial decision, it’s always worth confirming details with your bank, lender, insurer, or a licensed financial advisor. Wanjaaro is here to help you run the numbers quickly and clearly along the way.

You can find more about my work on LinkedIn or GitHub.

If you have questions, feedback, or suggestions, please get in touch. I’m always looking to improve these tools.