Finance tools

7 free finance tools, all running in your browser.

Split income using the 50/30/20 budget rule with custom percentages and expense tracking

Calculate compound annual growth rate, reverse CAGR, and compare investment scenarios with year-by-year breakdowns

Calculate final prices, total savings, and markups with our free online discount calculator. Supports stacked discounts, multi-item carts, and tax.

Adjust any amount for inflation between years using official US CPI data. Past to present, present to past, future projections, and custom rates.

Compare bulk prices and find the cheapest cost per unit, ounce, gram, liter, or item.

Calculate return on investment (ROI) percentage from profit, revenue, or cash flow and cost.

Estimate investment doubling time from rate and required rate from doubling time.

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