Money & Finance

How big should your emergency fund be? Aim for 3 to 6 months of essential expenses. Learn how to calculate your target and when to save more.

APR vs interest rate explained: the interest rate is the borrowing cost, the APR adds fees for the true yearly cost. Learn which to compare and why.

How to calculate net worth: add up your assets, subtract your liabilities. Includes a worked example, what to include, and why tracking the trend matters.

Lenders use the 28/36 rule to decide what you can borrow. Here is how to run it properly, including the step that costs buyers tens of thousands.

How to calculate ROI: divide net profit by cost and multiply by 100. Includes a worked example, annualized ROI for fair comparison, and key limitations.

Simple vs compound interest explained with formulas and a side-by-side example. Simple interest is flat; compound interest grows faster over time.

Understand how compound interest works: the A = P(1 + r/n)^nt formula, worked examples, compounding frequency, APY, and the Rule of 72 doubling shortcut.

See exactly how EMI is calculated: the formula, a full worked example, amortization tables, flat vs reducing-balance rates, and how to lower your instalment.

Convert hourly pay to annual salary with one formula, a full conversion table, the 2,080-hour rule, and the adjustments that make your estimate accurate.

The 4% rule gives a clean answer that was derived from one country’s unusually good century. How to build a retirement target that travels.