Finance Calculators — Guides & Articles
Inflation Calculator Formula and Worked Example
Published 2026-09-07
The inflation calculator formula is future cost = amount × (1 + r)^n and purchasing power = amount ÷ (1 + r)^n. See the math and run it.
Home Affordability Calculator on iPhone: Use It in Safari
Published 2026-09-07
Run a home affordability calculator on iPhone in Safari with no app download. Find your max home price under the 28/36 DTI rule.
Discount Calculator on iPhone: No App Needed
Published 2026-09-07
Calculate discounts on iPhone without downloading an app. Get sale price, total savings, and true combined coupon math in Safari — free, private, instant.
Compound Interest Calculator Explained: Behind the Math
Published 2026-09-06
Compound interest calculator explained: the formula, what each input does, how compounding frequency changes the result, and how to read the output.
Is a Simple Interest Calculator Safe to Use Online?
Published 2026-09-06
A safe simple interest calculator runs in your browser and never sends your data anywhere. Here's how to spot one and use it without risk.
Car Loan Calculator on iPhone: No App Needed
Published 2026-09-06
Car loan calculator on iPhone in Safari — no app needed. Enter price, down payment, trade-in, APR, and term to see your monthly payment and total cost.
Savings Calculator Alternative Built for Recurring Saving
Published 2026-09-06
Tired of lump-sum savings calculators? This free alternative models recurring deposits, shows your contributions vs. interest separately, and runs in your…
Retirement Calculator for Beginners: Start With 5 Numbers
Published 2026-09-06
A retirement calculator for beginners turns your age, savings, and monthly contributions into a projected nest egg and a 4%-rule monthly income in seconds.
Tip Calculator Chart: Bills, Tips, and Totals at a Glance
Published 2026-09-06
Tip calculator chart showing tip amounts at 10%, 15%, 18%, 20%, and 25%, plus how to use the Tip Calculator for custom bills and splits.
COLA Impact on Disability Benefits: Estimate the Change
Published 2026-09-05
COLA raises your disability benefit each January. Use the Social Security COLA Calculator to model an SSDI or SSI payment with official 2018–2026 rates.