Tools

Financial calculators

Plan, compare and size decisions. Everything runs in your browser; nothing you type is sent anywhere.

Investing

See how a lump sum plus monthly additions grows with compounding.

Regular monthly investing with an optional yearly step-up.

The compound annual growth rate between two values.

How long it takes money to double at a given rate.

Average price per share across several buys, with break-even price and unrealized gain.

Project your 401(k) with employer match and salary growth.

How much you need to retire early, and how long it will take.

Tax-free growth to retirement, with the 2026 $7,500 limit and $1,100 catch-up.

Pay tax now (Roth) or later (traditional)? Compare what each leaves you after tax.

Your 2026 federal income tax by bracket, with marginal and effective rates and FICA.

Federal tax on a stock sale: short- vs long-term rates and the 3.8% NIIT, side by side.

Grow a dividend portfolio with reinvested payouts and dividend growth.

Monthly payment with taxes, insurance and PMI, plus the amortization schedule.

Payment, total interest and payoff schedule for any fixed-rate loan.

What today's dollars will be worth — and cost — in the future.

The monthly amount needed to reach a target by a date.

How many shares to buy so a stop-loss risks a fixed share of your account.

Payoff at expiration for long or short calls and puts, with breakeven and max profit/loss.