Privacy-first business calculators

Run margin, pricing, and finance math in your browser. Numbers stay on your device.

Pricing & margins

Link cost, margin %, revenue, and profit — change any two to solve the rest.

Set markup on cost and see revenue and profit update instantly.

See markup, margin, and profit from price and cost in a few inputs.

Work backward from target margin and discounts before you send a quote.

Estimate a minimum freelance hourly rate from monthly expenses and weekly hours.

Convert hourly wage to yearly pay and net income after tax.

Switch between annual, monthly, weekly, daily, and hourly pay.

Project savings growth with compounding and optional deposits.

Find how many units or hours you need to cover fixed and variable costs.

ROI, payback period, and NPV for quick business cases.

Loan amortization or compound growth — runs locally in your browser.

Add VAT or GST to invoices, or extract tax from a gross total.

Model revenue, collection rate, and hours needed to hit firm targets.

Per-visit profit and break-even for dental and medical practices.