Every calculator on this page is free, runs in your browser, and needs no account or email. They are built for active traders who want a fast answer before placing a trade or sizing a position, and each one can be embedded on your own site. Pick the tool that matches the question you are trying to answer, or work down the list.

Key Takeaways

• Every Financial Tech Wiz calculator is free and requires no signup.
• The set covers the full trade lifecycle: position size and risk before the trade, profit and average-down math during it, and compounding, dividend, and retirement projections for the long game.
• Calculators answer one-off questions; a trading journal answers whether your decisions actually work over time.

How the calculators are organized

Trading and risk calculators

The risk/reward calculator turns an entry, stop, and target into a clean risk/reward ratio and tells you whether a setup clears your minimum before you commit capital. The stock calculator works out profit, loss, and break-even on a stock position from your entry and exit prices, including position cost and total return. The average-down calculator shows your new blended cost basis and break-even when you add to a losing position, so you know exactly what the stock has to do to get you flat.

Options calculators

The options profit calculator models profit, loss, and break-even for single and multi-leg options strategies across a range of underlying prices, so you can see the payoff shape before you open the position. It is the fastest way to sanity-check a covered call, spread, or cash-secured put.

Investing and retirement calculators

The compound interest calculator projects how a balance grows over time with regular contributions and a set rate of return. The dividend calculator estimates income and reinvested growth from a dividend-paying position. The 401k calculator projects retirement balances from contributions, employer match, and expected returns.

Which calculator should I use?

Match the tool to the question you are trying to answer:

• Sizing a trade so one loss does not blow up your account: start with the risk/reward calculator, then confirm your share count against your stop.
• Checking whether a stock trade was worth it: the stock calculator gives profit, loss, and total return from entry and exit.
• Deciding whether to add to a losing position: the average-down calculator shows your new break-even before you double down.
• Planning an options trade: the options profit calculator shows the full payoff curve and break-even points.
• Projecting long-term growth, dividend income, or retirement: use the compound interest, dividend, and 401k calculators.

Calculators answer single questions in isolation. A trading journal is what connects them: the Financial Tech Wiz Trading Journal records the trades you sized and analyzed so you can see, over months, whether your risk/reward discipline and setup selection are actually paying off.