Loan Guides

Short loan guides that explain how interest, payments and rates work in plain words — no finance degree needed. Each one ends with a worked example you can check against the calculators.

How Loan Interest Works — simple vs compound interest, amortization, and APR vs interest rate.
How to Pay Off a Loan Early — extra payments, lump sums, and what to check before you pay more.
Fixed vs Variable Rate — which one fits your loan, with worked numbers for both.

Try the tools: Loan Calculator, Amortization Calculator, Loan Payoff Calculator.

Sources and method. Standard loan amortization formula: monthly rate = annual rate / 12; monthly payment = P × r(1+r)ⁿ / ((1+r)ⁿ − 1). Simple interest I = P × r × t; compound interest A = P(1 + r/n)^nt. Rates in the examples on this page are examples only, not live market rates. Results are estimates, not financial advice.

Estimate, not financial advice. This calculator uses the numbers you enter and the standard amortization formula. Your lender’s figures, fees and payoff rules can differ. Check the loan agreement and talk to a financial professional before you borrow.