Finance Calculators— Guides & Articles

• Home Loan Calculator: Estimate Payments and Total Interest

  Published 2026-08-22

  Estimate your monthly mortgage payment, total interest, and amortization schedule with a free home loan calculator that runs locally in your browser.

  

• Home Affordability Calculator Example: A Full Walkthrough

  Published 2026-08-21

  See a home affordability calculator example with $80,000 income, $300 in debts, and $20,000 down. Step-by-step math using the 28/36 rule.

  

• Calculate Compound Interest for 6 Months: A Plan

  Published 2026-08-21

  Calculate compound interest for 6 months using A = P(1 + r/n)^(nt). Enter 0.5 for t, choose the compounding frequency, and read the final amount instantly.

  

• Car Loan Calculator Example: Numbers From a Real Loan

  Published 2026-08-21

  See a worked car loan calculator example with a $30,000 vehicle, 60-month term, and 6.5% APR. Walk through inputs, formula, and what each output means.

  

• Calculate Tip for 70.00: Rates, Totals, and Splits

  Published 2026-08-20

  Need to calculate tip for 70.00? See standard tip percentages, totals, and per-person splits for a $70 bill — plus pre-tax vs post-tax guidance.

  

• Social Security COLA vs Inflation: Modeling the Gap

  Published 2026-08-20

  Compare Social Security COLA rates to inflation and see how different adjustment percentages change a monthly benefit under transparent assumptions.

  

• Calculate Savings for Retirement and Project Future Value

  Published 2026-08-20

  Project the future value of regular deposits growing into your retirement savings pot, with contributions and interest earned shown side by side.

  

• How to Calculate ROI for Marketing Campaigns

  Published 2026-08-20

  Calculate ROI for marketing: enter your campaign cost and revenue to see ROI percentage, net profit, and annualized return side by side.

  

• Is an Online Retirement Calculator Safe to Use?

  Published 2026-08-20

  An online retirement calculator is safe when it runs in your browser without uploading your data. See what to check before you enter your numbers.

  

• Calculate Mortgage for Home: The Real Monthly Cost

  Published 2026-08-20

  Calculate mortgage for home — a free tool turns price, down payment, rate, and term into your monthly payment, total interest, and full amortization schedule.