Simple Interest Calculator
Work out flat, non-compounding interest fast.
Finance
Loans, interest, tax, savings & money calculators.
Mortgage Calculator
Estimate monthly mortgage payments and total cost.
ROI Calculator
Measure return on investment and annualize it.
CAGR Calculator
Compute the compound annual growth rate.
Discount Calculator
Find the sale price or work back to the original.
Sales Tax Calculator
Add or remove sales tax / VAT from any price.
Annuity Calculator
Solve annuity payment, future value or present value.
Auto Loan Calculator
Estimate car payments with tax, trade-in and down payment.
Break-Even Calculator
Find the units and revenue you need to break even.
Credit Card Payoff Calculator
See how fast a fixed payment clears your card.
Debt Snowball Planner
See how fast the snowball clears your debts.
Dividend Yield Calculator
Work out dividend yield and annual income.
Future Value Calculator
See what your savings grow into with compounding.
Hourly Rate Calculator
Find the freelance rate that hits your income goal.
Inflation Calculator
See how inflation changes money over time.
Markup Calculator
Set a selling price from cost and markup.
Mortgage Amortization Schedule
Full payment-by-payment loan amortization table.
Net Worth Calculator
See what you own minus what you owe.
NPV Calculator
Net present value and IRR for any cash flow series.
Present Value Calculator
Discount future money back to what it is worth today.
Profit Margin Calculator
Turn cost and price into margin and markup.
Retirement Savings Calculator
Project your nest egg from contributions and returns.
Rule of 72 Calculator
Estimate how long it takes your money to double.
Salary Converter
Convert pay between hourly, monthly and yearly.
Savings Goal Calculator
Find the monthly saving to hit your target.
Stock Average Calculator
Find your weighted average share cost.
About Finance
Money calculators that show their working: loan and mortgage repayments with full amortisation, simple and compound interest, ROI and CAGR for investments, VAT and sales tax, discounts, tip splitting and fuel costs. Each one displays the formula and breakdown behind the headline number, so you can sanity-check what a lender or a spreadsheet is telling you. The figures you enter — salaries, loan amounts, investment sums — are processed entirely in your browser and never uploaded or stored. These calculators are for quick estimates and understanding; they are not financial advice.