Financial education for better money decisions.
Short, practical explainers designed to help you understand the assumptions behind common financial calculations.
Loans, mortgages and debt
How Loan Interest Works
Loan interest is the cost of borrowing money. A loan usually combines principal, interest, and a repayment schedule.
Read guide → BorrowingHow Mortgage Payments Are Calculated
Mortgage payments are commonly calculated from principal, interest rate, and term, with taxes and insurance often handled separately.
Read guide → BorrowingWhy Loan Term Changes Total Interest
A longer repayment term can reduce the required payment while increasing the number of months over which interest can accrue.
Read guide → Borrowing15-Year vs 30-Year Mortgage: What Changes?
Mortgage term changes the payment schedule, total interest, and speed at which principal is repaid.
Read guide → BorrowingHow Car Loan Interest Adds Up
Vehicle financing combines principal, interest, term, and sometimes additional financed costs.
Read guide → BorrowingHow Debt Payoff Calculations Work
Debt payoff math depends on balance, interest rate, payment size, and how often interest is applied.
Read guide → BorrowingDebt Avalanche vs Debt Snowball
The avalanche approach prioritizes high-rate debt, while the snowball approach prioritizes smaller balances.
Read guide → BorrowingWhat an Interest Rate Really Means
An interest rate is a percentage used to express the cost of borrowing or the return associated with money over a period.
Read guide → BorrowingAPR vs Interest Rate
An interest rate and APR can describe different aspects of borrowing costs, depending on the product and jurisdiction.
Read guide →Budgets, goals and net worth
Budgeting Basics: A Practical Starting Point
A practical budget starts with reliable income, recurring commitments, flexible spending, and a savings or debt-reduction target.
Read guide → BudgetingUnderstanding the 50/30/20 Budget Rule
The 50/30/20 framework is a budgeting guideline that groups spending into needs, wants, and savings or debt reduction.
Read guide → BudgetingHow to Choose Budget Categories
Useful budget categories should reflect the way you actually spend and save.
Read guide → BudgetingHow Much Should an Emergency Fund Be?
An emergency fund is a cash reserve intended for unexpected expenses and interruptions to income.
Read guide → BudgetingHow to Calculate Net Worth
Net worth is calculated by subtracting total liabilities from total assets.
Read guide → BudgetingHow to Turn a Money Goal Into a Number
A vague goal becomes more actionable when it is converted into an amount, deadline, and measurable contribution.
Read guide → BudgetingA Simple Framework for Reviewing Your Finances
A periodic review can look at cash flow, debt, savings, investments, protection, and major upcoming goals.
Read guide →Growth, savings and inflation
How Compound Interest Works
Compound growth means returns can be earned on the original amount and on previously accumulated returns.
Read guide → InvestingSimple Interest vs Compound Interest
Simple interest and compound interest use different methods for calculating growth over time.
Read guide → InvestingHow to Calculate a Savings Goal
A savings goal becomes easier to plan when you translate the target, starting balance, time horizon, and expected return into a regular contribution.
Read guide → InvestingROI Explained: Return on Investment
ROI compares profit or loss with the initial investment and expresses the relationship as a percentage.
Read guide → InvestingHow to Think About Investment Returns
Investment returns should be considered alongside time, volatility, fees, taxes, and cash-flow timing.
Read guide → InvestingDollar-Cost Averaging Explained
Dollar-cost averaging means investing a consistent amount on a schedule rather than making one large purchase.
Read guide → InvestingFuture Value: What Your Money Could Become
Future value calculations illustrate how a starting amount may change under an assumed growth rate.
Read guide → InvestingHow Inflation Reduces Purchasing Power
Inflation means the same amount of money may buy fewer goods and services over time.
Read guide →Pay and commission
Gross Pay vs Net Pay
Gross pay is before deductions; net pay is what remains after applicable deductions.
Read guide → IncomeHow to Estimate a Paycheck
A paycheck estimate starts with gross pay and subtracts an assumed level of taxes and other deductions.
Read guide → IncomeHow Sales Commission Is Calculated
Commission is commonly calculated by applying a percentage to eligible sales, but plans can include tiers and thresholds.
Read guide →Margins, pricing and cash
Profit Margin Explained
Profit margin expresses profit as a percentage of revenue.
Read guide → BusinessMarkup vs Margin: What Is the Difference?
Markup is calculated from cost, while margin is calculated from selling price.
Read guide → BusinessHow Break-Even Analysis Works
Break-even analysis estimates the sales volume required for revenue to cover fixed and variable costs.
Read guide → BusinessHow to Set a Starting Price With Cost Data
Pricing can begin with unit cost, desired markup or margin, market context, and operating requirements.
Read guide → BusinessHow Discounts Affect Selling Price
A discount reduces a stated price by a percentage or fixed amount.
Read guide → BusinessHow to Calculate Percentages
Percentages describe a part relative to a base and are useful in finance, business, shopping, and everyday comparisons.
Read guide → BusinessCash Flow vs Profit
Profit and cash flow answer different questions about a business and should not be treated as identical.
Read guide → BusinessGross Margin vs Net Margin
Gross margin focuses on revenue after direct costs, while net margin considers a broader set of expenses.
Read guide →Price, spread and profit
How Gold Profit Is Calculated
Gold profit depends on quantity, buy price, sell price, fees, spreads, and the unit used for pricing.
Read guide → GoldGold Buy/Sell Spread Explained
The difference between a quoted buy and sell price can materially affect the result of a gold transaction.
Read guide → GoldGold Price by Weight: A Simple Framework
Gold prices are commonly quoted per unit of weight, so unit consistency matters when estimating transaction value.
Read guide →How to read an estimate
How to Read a Financial Calculator Result
Calculator results are most useful when you understand the assumptions behind the number.
Read guide → Using toolsWhy Financial Calculators Are Estimates
Financial calculators simplify reality so users can understand relationships between variables.
Read guide → Using toolsHow to Use Online Finance Calculators Safely
Online calculators can support planning, but users should verify formulas, assumptions, privacy practices, and real product terms.
Read guide →