Finance Calculators— Guides & Articles

• How to Calculate Retirement Savings and Income

  Published 2026-07-10

  Calculate your retirement nest egg and project monthly income using the 4% rule. Determine how much to save today to meet your future goals.

  

• Calculate Your Mortgage Payment and Total Interest in One Click

  Published 2026-07-10

  Enter your home price, down payment, interest rate, and loan term to instantly see your monthly mortgage payment, total interest, and full amortization…

  

• Calculate Inflation in Seconds to See Future Costs and Purchasing Power

  Published 2026-07-10

  Use the exact inflation rate to see how much today’s $100 will buy in 10 years—enter the amount, rate, and years to get instant future cost and purchasing…

  

• Determine Your Affordable Home Purchase Price in 3 Simple Steps

  Published 2026-07-10

  Use the 28/36 rule to find the maximum home price you can afford based on your income, debts, and down payment—no complex math required.

  

• Calculate Discount in Excel and Compare Stacked Coupons Accurately

  Published 2026-07-10

  Find the exact sale price and true savings in Excel with simple formulas. See why stacked discounts (20% then 10%) equal 28% off, not 30%, and avoid common…

  

• How to Calculate Compound Interest on a CD in Minutes

  Published 2026-07-10

  Calculate CD compound interest accurately using the formula A = P(1 + r/n)^(nt). See how frequency affects earnings with a free online calculator.