Clear math for long-term investors.

Project dividend income and portfolio growth, with or without DRIP.

Profit, return and breakeven on a stock trade, after fees and tax.

Average cost per share across buys, and how many shares to buy to hit a target.

Profit, loss and breakeven at expiration for calls, puts and spreads.

Tax on selling stocks, funds or property — short-term, long-term and home sales.

What a bond is worth, its yield to maturity, current yield and duration.

Find out if you can stop saving and still retire on time.

How much you can contribute this year, and what your Roth IRA could grow to.

Federal tax, state tax and the 10% early-withdrawal penalty on a 401(k) withdrawal.

See exactly what a certificate of deposit will earn by maturity.

What your I bond or EE bond is worth today, using official Treasury rates.

How much college could cost, and how much to save each month to get there.

How many years it takes your money to double — and the rate you need.

Your overtime rate and total pay for the week, including double time.

Your new pay after a raise — hourly, monthly and yearly — and whether it beats inflation.

Convert salary to hourly pay and back — plus weekly, biweekly and monthly.

How much of your bonus you take home, and whether you’ll get some back at tax time.

Your full monthly payment with tax, insurance and PMI, plus an amortization schedule.

The home price your income, debts and down payment can support — with tax, insurance and PMI.

How much a lump sum and recast lower your payment, vs. just paying extra.

Your interest-only payment, the payment jump afterwards, and the true cost.

How much cash you can take from your home, your new payment and the true cost.