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Professional financial calculators for business and personal use. Calculate ROI, mortgage payments, compound interest, break-even points, loan amortization, VAT, and sales tax — with instant results and exportable data.
Ad spend ROI and unit economics calculator.
Scenario modeling for CAC, LTV, margin, and net profit with growth lever prioritization.
Estimate contribution margin, break-even units, break-even revenue, and target-profit sales volume.
Project future value, total contributions, and interest earned with recurring monthly additions.
Calculate return on ad spend, break-even ROAS, CPA, CPC, and margin-aware paid acquisition thresholds.
Estimate monthly payment, amortization, escrow, and early payoff savings.
Calculate payment, total interest, fees, and early repayment savings.
Compute net, VAT, and gross totals with country rates and discounts.
Add or extract sales tax with state and local rates, shipping and discounts.
Finance calculations punish small errors. A wrong compounding period inflates a five-year projection, a forgotten VAT line distorts a margin report, and an off-by-one mortgage schedule misleads a buyer. This hub provides clean, transparent calculators with explicit assumptions — every output shows the formula behind the number, so you can audit before you act.
All calculators run entirely in your browser. Income figures, loan balances, mortgage details, and tax inputs are never sent to a server, never logged, and never reused for advertising. There is no account, no rate limit, and no requirement to share personally identifying information to get a result.
Use this set for personal decisions — comparing two mortgage offers, sizing a refinance, or estimating compound returns on savings — and for business workflows like ROI analysis on a campaign, break-even modelling for a launch, and VAT-inclusive pricing for invoices. Most tools export results to CSV so figures move cleanly into a board deck or accounting spreadsheet.