Finance & Investment Tools

Take command of your financial planning with precision calculators for loans, mortgages, compounding investments, savings rates, and tax liabilities. Model long-term wealth accumulation and evaluate borrowing costs with transparent math.

⚡ 100% Free 🔒 Client-Side & Private ⚡ No Sign-up Needed 📊 168 Tools Available
Showing 24 of 168 tools
⚡ NEW

Investment Return Calculator

Calculate total and annualized ROI, capital appreciation, and dividend yields. Fast, free, and secure client-side execution in your browser.

⚡ FREE

Invoice Generator

Create professional invoices instantly. Add line items, tax, discounts, and your business details. Download as printable HTML. Free online invoice maker.

⚡ NEW

Kelly Criterion Calculator

Calculate mathematically optimal position size and portfolio capital allocation using the Kelly Criterion. Free, private, and simple to use in your browser.

⚡ NEW

Lean FIRE Calculator

Calculate your minimalist financial independence target based on essential, low-cost baseline living expenses. Free, private, and simple to use in your browser.

⚡ NEW

Loan APR Calculator

Calculate the true Truth-in-Lending Act (TILA) Annual Percentage Rate (APR) by accounting for upfront lender fees. 100% free and private browser utility.

⚡ NEW

Loan Comparison Calculator

Directly compare two loan offers side-by-side to determine which delivers lower payments and lifetime costs. Free, private, and simple to use in your browser.

⚡ FREE

Loan EMI Calculator

Calculate monthly loan EMI payments, total interest, and amortization schedule. Works for home loans, car loans, personal loans. Free online loan calculator.

⚡ NEW

Loan Interest Calculator

Calculate total loan interest, monthly installment payments, and amortization. Fast, free, and secure client-side execution in your browser.

⚡ NEW

Loan Term Calculator

Analyze the trade-off between monthly payment affordability and lifetime compounding interest across loan terms. 100% free and private browser utility.

⚡ NEW

Loan-to-Value (LTV) Calculator

Calculate LTV and Combined LTV (CLTV) ratios and evaluate PMI requirements. Fast, free, and secure client-side execution in your browser.

⚡ NEW

Margin Call Calculator

Calculate the exact stock price that triggers a broker margin call and compute required cash deposit. Free, private, and runs 100% directly in your web browser.

⚡ NEW

Maximum Drawdown Calculator (MDD)

Calculate portfolio peak-to-trough Maximum Drawdown and determine the required percentage gain to recover. Free, private, and simple to use in your browser.

⚡ NEW

Mortgage Affordability Calculator

Estimate maximum home purchasing power based on income, down payment, and DTI. Fast, free, and secure client-side execution in your browser.

⚡ FREE

Mortgage Calculator

Calculate monthly mortgage payments, total interest, and view amortization schedule. Compare loan terms and see year-by-year breakdown. Free mortgage calculator.

⚡ NEW

Mortgage Comparison Calculator

Compare two mortgage loans side-by-side online. Calculate monthly principal and interest, total lifetime borrowing costs, interest savings, and discount point break-even.

⚡ NEW

Mortgage Overpayment Calculator

Analyze the financial impact of monthly, annual, or lump-sum mortgage overpayments. Fast, free, and secure client-side execution in your browser.

⚡ NEW

Mortgage Payoff Calculator

Model early home loan payoff and calculate interest saved with extra payments. Fast, free, and secure client-side execution in your browser.

⚡ NEW

Municipal Bond Tax-Equivalent Yield Calculator (TEY)

Calculate taxable equivalent yield required on corporate bonds to match tax-exempt municipal bonds. Fast, interactive, and completely free with instant results.

⚡ FREE

Mutual Fund Returns Calculator

Calculate mutual fund returns (SIP / Lumpsum). Fast, free, and secure client-side execution in your browser.

⚡ NEW

Net Present Value Calculator (NPV)

Calculate NPV and evaluate discounted cash flow capital investments. Fast, free, and secure client-side execution in your browser.

⚡ NEW

Net to Gross Salary Calculator

Calculate required gross salary from desired net take-home pay online. Free reverse tax calculator with federal brackets, state tax, and FICA deductions.

⚡ FREE

NPS Calculator

Calculate your National Pension Scheme (NPS) maturity amount and monthly pension. Fast, 100% private in-browser utility with zero server uploads.

⚡ NEW

Options Delta Calculator

Calculate Option Delta, Delta-equivalent shares, Gamma, and Black-Scholes price sensitivities. Fast, free, and secure client-side execution in your browser.

⚡ NEW

Options Profit Calculator

Calculate profit, loss, breakeven points, and ROI for calls and puts across multi-scenario price targets. Free, private, and simple to use in your browser.

No tools found

No tools match your current search query or filter. Try a different search term or reset your filters.

What You'll Find in Our Finance & Investment Tools Collection

Our finance suite delivers institutional-grade mathematical accuracy for everyday personal finance and professional investment modeling. Generate detailed amortization tables, forecast APY compound yields across custom intervals, calculate FIRE targets, and analyze sales taxes with interactive visual charts.

How to Use Finance & Investment Tools

Complete your task with ease in three quick steps.

Select a Financial Calculator

Choose a calculator matching your loan, investment, savings, or tax scenario.

Input Financial Parameters

Enter principal amounts, interest rates, loan terms, contribution schedules, and compounding frequencies.

Analyze Amortization & Growth

Review comprehensive breakdown tables, cumulative interest totals, and visual projection trajectories.

Frequently Asked Questions About Finance & Investment Tools

Our calculators use standard banking amortization formulas (fixed-rate annuities) identical to commercial mortgage lenders and financial institutions.

Yes. The Compound Interest and Savings Rate calculators allow you to model periodic contributions with daily, monthly, quarterly, or annual compounding intervals.

Yes. Amortization schedules can be reviewed on screen, copied to spreadsheets, or printed for personal financial record-keeping.

No. All calculations are executed transiently in your browser session and are never recorded or stored on any server.

Yes. The Sales Tax Calculator allows you to both add sales tax to a net figure and reverse-calculate base prices from gross totals.

Explore More Free Online Tools

Looking for something different? Browse all Toolzyo categories to discover more useful online tools.

Browse All Categories →