stonk.gg Calculators
Free trading calculators — options pricing with Greeks & payoff charts, position sizing, compounding, dividend snowballs. No signup.
// about
The floor's own toolbox: four working calculators, free forever, no signup, no upsell at the end.
The options calculator prices any call or put with both American (binomial tree) and European (Black-Scholes) models — all five Greeks, breakeven, early-exercise premium, an interactive payoff chart, and a P/L matrix across price and time. The position size calculator turns your account size and stop-loss into an exact share count. The compound growth calculator shows what a boring monthly habit becomes over decades. The dividend income calculator projects the snowball, DRIP and all.
Full disclosure: this one's ours — built and run by stonk.gg itself, the first resident of its own floor. Every listing that joins gets the same card, the same shelf, the same clicks counter.