What if?
Calculate it.

Project your 401(k) balance including employer matching, and see how much of it your employer contributed.

Work out an exact age in years, months and days, plus total days lived and time to the next birthday.

Calculate your monthly car payment, the total interest you will pay, and how much the loan adds to the price of the car.

See how a starting balance and regular contributions grow, and how much of the result is interest rather than your own money.

Work out the true cost of owning a car over five years, including depreciation, interest, fuel, insurance and maintenance.

See how long it takes to clear a debt, what the interest costs, and how much paying extra would save.

Work out what a trip costs in fuel, and what the same journey adds up to over a week, a month and a year.

Find the home price your income supports, using the same debt ratios lenders apply.

Split a bill fairly when people ate differently, stayed different lengths, or earn different amounts.

Work out how many units you must sell to cover your fixed costs, and what a price change does to that number.

Work out what a certificate of deposit pays at maturity, after inflation and after tax.

Work out the tax on an investment gain and what you keep after selling.