Finance Calculators — Guides & Articles
Inflation Calculator Example: $10,000 at 3% Over 20 Years
Published 2026-08-28
See a worked inflation calculator example: $10,000 at 3% over 20 years becomes $18,061 in future cost and $5,537 in today's purchasing power.
Inside the Home Affordability Calculator Formula
Published 2026-08-28
The home affordability calculator formula turns gross income, debts, down payment, rate and term into a maximum home price under the 28/36 DTI rule.
Discount Calculator Formula: How Sale Price Math Works
Published 2026-08-28
The discount calculator formula is final = price × (1 − discount ÷ 100). Learn the math, the stacking trap, and how to verify any sale in seconds.
A Private Compound Interest Calculator Alternative
Published 2026-08-28
Looking for a compound interest calculator alternative? This browser-based tool runs locally, focuses on the compounding-frequency effect, and shows your…
Car Loan Calculator Formula: How Your Payment Is Built
Published 2026-08-28
The car loan calculator formula in plain English: see how principal, APR, and term combine to set your monthly payment, then run your own numbers.
When Does a Social Security COLA Start for Your Benefit?
Published 2026-08-27
A Social Security COLA takes effect with the January check of the new payment year, using the rate SSA announced the prior October. Model your new amount…
How to Calculate Simple Interest for Days
Published 2026-08-27
Calculate simple interest for days using the I = P × R × D ÷ 365 formula. Learn the day-count conventions, where lenders use it, and how to do it fast.
Find Your Maximum Home Price with the 28/36 Rule
Published 2026-08-27
Use a home affordability calculator for beginners to enter your income, debts, and down payment—see an estimate of the home price you may be able to afford…
Plan Your Savings with a Recurring Deposit Calculator
Published 2026-08-27
See how regular deposits grow over time with a recurring deposit calculator. Project future value, total contributions, and interest earned instantly.
Is an Online ROI Calculator Safe to Use? Privacy Explained
Published 2026-08-27
Yes, an online ROI calculator can be safe when it runs locally in your browser and never uploads your inputs. Here's exactly how ours handles your data.