Money & Finance

12 calculators for money, loans, tax, pricing, savings, ROI and net worth.

No sign-up. No tracking. No ads.

Tip Calculator

Calculate tips and split the bill between any number of people. Multi-currency, instant results.

Mortgage & Loan Calculator

Monthly payment, total interest, and full amortization schedule. Multi-currency, with extra payment scenarios.

Salary Converter

Convert between hourly, daily, weekly, monthly and yearly pay. Configurable hours per week and weeks off.

Compound Interest

Calculate compound growth of an investment over time with optional monthly contributions and annual growth rate.

Discount Calculator

Work out the final price after a discount, the original price from a sale price, or the discount percentage saved.

VAT / Sales Tax Calculator

Net ↔ gross with country presets. Germany 19%, UK 20%, Austria 20%, and more. Bidirectional input.

Profit Margin Calculator

Cost + price → margin & markup, or cost + target margin → selling price. For Etsy, Amazon, Shopify sellers.

Freelance Hourly Rate

Calculate your minimum freelance rate from take-home goal, tax, overhead, working days and billable ratio.

Savings Goal Calculator

How much to save monthly to reach a goal, or how long it takes at your current rate. Compound interest baked in.

Inflation Calculator

Future or past purchasing power. What $100 in 1990 is worth now, or what $5k today buys in 20 years.

ROI Calculator

Return on investment — ROI %, net profit, annualised %. Compare projects of different durations fairly.

Net Worth Calculator

Assets minus liabilities, line-by-line. Multi-currency. Your numbers never leave the browser.

Payment Fee Calculator

PayPal / Stripe / Wise fees and net payout, plus reverse 'charge to receive X'.

Break-Even Calculator

Break-even units and revenue from fixed costs, price and variable cost per unit.

About this toolkit

A focused personal finance calculator suite — tip splitter, mortgage / loan amortization, salary converter, compound interest, discount, VAT / sales tax, profit margin, freelance hourly rate, savings goal, inflation adjustment, ROI with annualised return, and net worth tracker. Browser-based, your numbers stay private.

Who uses these tools

Frequently asked questions

Are these finance calculators accurate?

They use standard formulas (compound interest, mortgage amortization, ROI annualization). For tax decisions consult a qualified accountant; for investment decisions consult a financial advisor — these are educational tools, not advice.

Do they handle different currencies?

Yes — most tools are currency-agnostic (you pick the symbol). Live exchange rates are deliberately not used (would require a backend) so calculations are deterministic and offline-friendly.

Is my financial data uploaded?

No — everything runs in your browser. Net Worth Tracker stores entries in your browser's localStorage only.

How accurate is the mortgage amortization?

It uses the standard amortization formula. Real-life mortgages may differ slightly due to fees, escrow, prepayment options — check with your lender for the exact schedule.

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