Online Tools
Free, browser-based calculators for finance, business, accounting, Excel and everyday work — built and mathematically tested one at a time.
Tool Categories
Finance
ROI, ROE, ROA, CAGR, NPV, IRR, Payback, Break-even, EBITDA, Margin.
Business
Profit, revenue growth, markup, working capital, valuation tools.
Accounting
VAT, depreciation, gross profit and net profit calculators.
Excel
Spreadsheet utilities, formula helpers and data tools.
PDF & Documents
PDF conversion and document utilities.
Productivity
General work calculators, generators and planning tools.
Tools are launching soon
We build and test each calculator before publishing it, so nothing here is a placeholder that doesn’t actually work. The first 15 tools are in development — check back soon, or visit the Contact page to be notified.