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PlainCalc

All calculators

24 tools, grouped by what you’re trying to figure out. Press Ctrl K anywhere to search.

Mortgage & Loans

Payments, amortization, and what a loan really costs.

Savings & Investing

Compound growth, goals, and retirement math.

Income & Taxes

Paychecks, hourly rates, sales tax, and tips.

Debt Payoff

Credit cards and debt-free dates, with a plan.

Small Business

Margins, markup, break-even, and invoices.

Budget & Net Worth

Trackers that remember you between visits.