The everyday financial picture
Personal finance is the day-to-day math of money — what you owe, what you own, how prices change, and how much you need to set aside to hit a target. The Net Worth Calculator gives you the headline number by adding up assets and subtracting liabilities; tracked over time, it's the single best summary of whether your financial situation is improving. When liabilities are the bigger story, the Debt Payoff Calculator gets you a plan with snowball and avalanche options.
Goal-based saving
The Savings Goal Calculator answers two questions: "how long will it take?" given a fixed monthly contribution, or "how much per month?" given a fixed deadline. It's the right tool for a specific, short-to-medium-term goal — emergency fund, down payment, a vacation, a wedding — where you have a number and a date in mind. For long-horizon retirement and investment projections, the deeper tools are in Savings & Investing.
Comparing places and prices
The Cost of Living Calculator answers the relocation question — what salary in city B matches your lifestyle in city A — using BLS regional price parities and category-by-category cost differences. The Inflation Calculator shows how the dollar's purchasing power has eroded since any historical year using CPI-U back to 1913, which is useful for evaluating long-ago salaries, prices, or budgets — and for sanity-checking whether a savings rate is actually beating inflation.
Everyday and small-business tools
The Tip Calculator handles bill splitting and tip math — a quick utility rather than a long-form planning tool. For small-business owners, the Break-Even Calculator finds the unit volume where revenue covers fixed and variable costs — a foundational number for pricing decisions, hiring decisions, and product launches.
Related categories
Long-term wealth-building tools (401(k), retirement, compound interest, CDs) live under Savings & Investing. Day-to-day take-home pay calculations are in Payroll Calculators. For mortgages and home affordability, see Mortgage Calculators.
Frequently Asked Questions
What counts toward net worth?
Net worth is everything you own minus everything you owe. Assets include cash, checking and savings, retirement and brokerage accounts, the market value of your home and vehicles, and any business equity. Liabilities include mortgage balance, student loans, auto loans, credit card balances, and any other debt. Use current market value rather than what you paid, and count the full mortgage balance rather than the monthly payment. A negative net worth is common early in a career with student debt, and is not by itself a problem.
How large should an emergency fund be?
Three to six months of essential expenses is the usual guidance — essential meaning housing, food, utilities, insurance, minimum debt payments, not total spending. Toward the higher end if your income is variable, commission-based, or self-employed, or if you are the sole earner. Toward the lower end with very stable employment and a dual income. The point is avoiding high-interest credit when something breaks, which is why it generally comes before extra debt payments beyond the minimums.
How much does cost of living actually vary between cities?
Enough to swamp most raises. Housing is the dominant driver and varies far more than groceries or transportation, so the same salary can mean very different things in different metros. State income tax adds another layer — a move from a no-income-tax state to a high-tax one is an immediate cut in take-home pay even at identical gross salary. Compare equivalent salaries with the cost of living calculator, then check the tax side with the state paycheck calculators.
Why does inflation matter for money I already have?
Because purchasing power erodes even when the balance does not change. Cash sitting at 0% while inflation runs 3% loses about 3% of its real value each year — the number on the statement is unchanged, but it buys less. This is why a savings rate below the inflation rate is a real loss, and why long-term projections are more meaningful in inflation-adjusted terms than in nominal dollars.
What is a break-even point and why does it matter?
It is the sales volume where revenue exactly covers total costs — fixed costs divided by the contribution margin per unit. Below it you lose money on every additional period; above it, each additional unit contributes profit. It matters beyond small business, too: the same math answers whether refinancing recovers its closing costs before you move, or whether a bulk purchase saves money at your actual usage rate.