Finance Calculators— Guides & Articles

• How to Calculate ROI: A Practical Guide With Examples

  Published 2026-07-13

  ROI measures investment profitability using (gain − cost) ÷ cost. Learn the formula, see a worked example, and use our free ROI Calculator for instant results.

  

• How to Calculate Mortgage Payments, Interest, and PITI

  Published 2026-07-13

  Calculate your mortgage payment in minutes with our free Mortgage Calculator. Enter home price, down payment, rate, and term to see monthly cost, total…

  

• How to Calculate Loan Payment Timeline With a Fixed Budget

  Published 2026-07-13

  Use a free loan payoff calculator to see how many months it takes to clear a balance at a fixed monthly payment, plus total interest paid.

  

• How to Calculate Affordable Home Purchase Price

  Published 2026-07-13

  Calculate the home price you can afford using the 28/36 rule. Enter income, debts, and down payment to get your maximum purchase price instantly.

  

• How to Calculate Discount in Excel: The Right Formula

  Published 2026-07-13

  Calculate discount in Excel with the exact formulas, copy them into your sheet, and use a free tool to double-check stacked coupon math before checkout.

  

• Calculate CD Compound Interest with a Free Online Tool

  Published 2026-07-13

  Calculate compound interest on a CD by entering your principal, rate, term, and compounding frequency. Compare annual, monthly, and daily results instantly.

  

• How to Calculate a Car Loan Payment by Hand and Online

  Published 2026-07-13

  Calculate your monthly car loan payment in seconds. Use our free Car Loan Calculator to estimate total interest and total cost from price, APR, and term.

  

• How to Calculate Home Affordability With the 28/36 Rule

  Published 2026-07-13

  Use the 28/36 rule and your income, debts, and down payment to calculate how much house you can actually afford before you start shopping.

  

• How to Calculate Compound Interest the Easy Way | Lizely

  Published 2026-07-13

  Calculate compound interest in three quick steps: enter the principal, rate, and compounding frequency, then read the final amount and total interest earned.

  

• How to Calculate Simple Interest with a Free Calculator

  Published 2026-07-13

  Use our free simple interest calculator to find interest earned and total balance instantly. Enter principal, rate, and time — no signup, no formulas to…