Dollar Cost Averaging Calculator
Every bear market produces the same two camps of investors. One group sits on cash waiting for “the bottom,” which is a price target that only ever gets identified in hindsight. The other group keeps…
Calculator
Every number on this page is something you can actually test before it costs you money. That’s the whole idea behind this section — a working set of calculators for the math that actually matters when you’re building a position, sizing a trade, or figuring out whether a strategy holds up once you run real numbers through it instead of gut-checking it.
I built these because I got tired of doing the same napkin math over and over — how much compounding actually adds over 20 years versus 10, what a 2% risk limit means in actual share count, what a covered call really nets after the stock gets called away. None of it is complicated math. Most of it is arithmetic anyone learned in high school. But doing it by hand every time you want to test an assumption gets old fast, and spreadsheets have a way of accumulating errors nobody catches until the numbers stop making sense.
So these are stripped down to just the inputs that matter. No sign-up, no data collection, nothing running in the background — you type in numbers, you get an answer, and if you change your mind about an assumption you just change the number and run it again. A few of them cover ground that overlaps (compounding shows up in both the DCA calculator and the dividend reinvestment one, for instance), which is intentional — different questions call for different framing even when the underlying math rhymes.
Use these as a sanity check, not a forecast. A calculator can tell you what a 7% return compounds to. It can’t tell you whether 7% is the right assumption for your portfolio, and neither can I — that part’s still on you.
Stock Average Calculator
If you’ve bought the same stock more than once, averaging into a position over time, buying more after a dip, dollar-cost averaging into a name you believe in for the long run, you already know…
Stock Ratings
Quantitative Equity Research Stock Quant Rating A 22-factor composite 0-10 score across sentiment, momentum, valuation, growth, and financial health Look Up Any Ticker or Company Name Get Rating ⚙ Customize Category Weights The 22 Factors,…
Stock Profit Calculator
Here’s a small, mildly annoying truth about stock trading that beginners underestimate and experienced traders occasionally forget when they’re being lazy: the price on your screen minus the price you paid is not your profit.…
Risk/Reward Ratio Calculator
Every trader has heard “make sure your reward outweighs your risk” roughly four thousand times before they even open their first brokerage account. Fine advice. Almost nobody explains what number actually satisfies that requirement, or…
Position Size Calculator Stock
Let’s talk about the one calculation that matters more than your entry, more than your indicator setup, more than whatever chart pattern you think you spotted on the 15-minute timeframe. Position sizing. It’s boring. Nobody…
Options Profit Calculator
Alright, let’s talk options P&L, because I get some version of “wait, why did I lose money even though the stock went up” about twice a week from readers, and it’s almost never a bad…
Compound Interest Calculator
What This Calculator Does This tool projects how a lump-sum investment combined with recurring monthly contributions grows over time, assuming a fixed annual rate of return compounded monthly. It’s built around the same math brokerages…