Financial

Loans, mortgages, savings, retirement, taxes — every financial calculator you need to make confident money decisions.

• Future Value Calculator

  Calculate the future value of a lump-sum deposit or a series of equal payments (annuity) at a given rate. See the FV formula and step-by-step math.

• Loan Payment Calculator

  Calculate your monthly loan payment instantly with our free online loan calculator. Supports custom principal, rate, and term inputs.

• Compound Interest Calculator

  Calculate compound interest and total balance for annual, quarterly, monthly, daily, or continuous compounding. See the formula and step-by-step math.

• Margin & Markup Calculator

  Calculate profit margin, markup, cost, revenue, and profit from any two known values. See exactly why margin and markup are never the same number.

• Present Value Calculator

  Calculate what a future lump sum or a series of equal payments (annuity) is worth today, discounted at a given rate. See the PV formula and steps.

• ROI Calculator (Return on Investment)

  Calculate ROI (Return on Investment) from cost and final value, then see the optional annualized ROI to compare investments over different holding periods.

• Simple Interest Calculator

  Calculate simple interest and total repayment instantly. Enter principal, rate, and time in years to see interest earned or owed, step by step.