Free Calculator

Compound Interest Calculator

Calculate the final amount and total interest earned with compound interest.

Enter your numbers

Principal Amount

Initial amount invested or deposited

Annual Interest Rate

Compounding Frequency

Time Period (years)

Formula

A = P × (1 + r/n)^(n×t)

P = principal, r = rate, n = compounds/year, t = years

Enter your principal and time period to see results

Your real numbers, updated in real time - no manual calculation needed.

Business Loan Repayment Calculator

Calculate your monthly payment, total interest, and full cost of a business loan.

Return on Investment (ROI) Calculator

Calculate the ROI percentage from any investment - marketing, equipment, or capital.

Monthly Cash Flow Forecast Calculator

Calculate your net cash flow and ending balance from monthly inflows and outflows.