Financial Calculators

Plan loans, amortisation schedules, mortgage payments, and salary breakdowns with calculators that work entirely in your browser.

Amortization Calculator

Break down a fixed-rate loan into its monthly payment, total interest, and total cost over the life of the loan — see exactly how much of every payment goes to interest vs. principal.

APR Calculator

Compute the Annual Percentage Rate (APR) of an amortizing loan — enter the loan amount, term, the contractual interest rate the lender quotes, and any upfront fees to see the true cost of borrowing.

Business Loan Calculator

Estimate periodic payments and total cost of a business loan including origination and documentation fees.

Cash Back or Low Interest Calculator

Compare a higher-rate cash-back auto financing offer with a lower-rate loan to see which option costs less over the full term.

Compute a salesperson's or affiliate's earnings from gross sales — enter total sales, the base commission rate, choose how tiers work (flat, full-tier or marginal-reset), set the tier threshold and higher rate, and add any flat bonus.

Lease Calculator

Estimate your monthly lease payment and see the full breakdown of how it is built — depreciation fee, finance charge, residual value, and total cost over the entire lease term.

Mortgage Calculator

Estimate your monthly mortgage payment and the full breakdown of carrying costs — principal & interest, property tax, home insurance, PMI, HOA, and other recurring expenses.

Payment Calculator

Solve for the missing piece of a fixed-rate amortizing loan — pick whether you want a fixed term (and we'll compute the monthly payment) or fixed payments (and we'll compute the term).

Personal Loan Calculator

Estimate the monthly payment, total of all payments, total interest, and calendar payoff month for a fixed-rate personal loan — enter the principal, rate, term, and the month you take the loan out.

Profit Margin Calculator

Calculate gross profit, profit margin, markup, and break-even revenue from your revenue and total cost. Useful for pricing, product mix decisions, and profitability reviews.

Rent Calculator

Estimate the maximum monthly rent you can comfortably afford based on your pre-tax income and existing debt payments.

Salary Calculator

Convert your hourly wage into daily, weekly, monthly, quarterly, and annual earnings — and account for paid holidays and vacation days so the annual figure matches a real working calendar.

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Fitness Calculators

Estimate your body composition, daily energy needs, and macronutrient targets with a set of fast, privacy-friendly calculators.

Math Calculators

Solve everyday arithmetic, algebra, geometry and statistics problems with a growing set of fast, privacy-friendly calculators.