Calculators that keep accounts alive
Free, instant, no sign-up. Each tool pairs with the lesson that teaches you to use it well — and the trade tools hand your numbers to each other, so one plan flows from checklist to journal without retyping.
The trade, step by step 7 steps, one plan, numbers carried between tools
Pre-trade checklist
6 professional checks before every entry — with a daily discipline streak. The trades that kill accounts are the ones that would have failed it.
2Position size calculator
Account, risk %, entry, stop → your exact size, risk amount and R-multiple targets. The single most important calculation in trading.
3Trade planner
Size, risk/reward, break-even, liquidation distance and live funding — every pre-trade number on one screen, with a pass/fail structure verdict.
3Stop-loss calculator
Stop by price, % or ATR → dollar risk, position size, margin at your leverage and a warning when the stop sits behind the liquidation price.
3Risk/reward planner
Entry, stop, target → your R-multiple, break-even win rate and expectancy. Decides if a trade is worth taking at all.
4Liquidation price calculator
Direction, leverage, entry → where the exchange takes your position away, and how far price must move to get there.
4Funding rate calculator
The invisible rent on perpetual positions, turned into dollars per day, week and month — before it eats your margin.
5Practice arena
A $10,000 virtual account at live prices — stops enforced, 1% sizing, and every closed trade logs straight into your journal.
6Trading journal
Log trades in R-multiples — win rate, expectancy and your equity curve compute themselves. Data stays in your browser, exports to CSV.
7Risk of ruin simulator
Monte Carlo 1,000 futures of your strategy and see how often it blows up — the case for 1% risk, drawn in front of you.
7Drawdown recovery calculator
See exactly what gain each loss requires to recover — the asymmetry that makes risk management click.
Exchanges and the cost of a trade where to open, what a fill really costs
Exchange matcher
One recommendation for your first account — scored on your country, what you'll trade, size, demo and custody. States the weakness, not just the strength.
Exchange fee calculator
Your size and frequency → dollars per round trip, month and year on Binance, OKX and Bybit — and what switching to limit orders saves, which is usually the bigger number.
Slippage calculator
What a market order of your size would really fill at right now, walked through the live Binance book — with a $1k / $10k / $100k / $1M table.
Crypto converter
Any top-50 coin to USD, EUR, VND, INR and 36 more at the live price, both directions, with the fee note nobody shows you.
Holding and investing buying over time, averaging, tracking
Cycle Planner
Buy & Hold with rules: wait for the deep drawdown, DCA in lots, recycle high-cost lots on rebounds, recover your capital at 2×, hold for 5×–10×. It tells you where you are, what your plan says now and what comes next.
DCA calculator
What a fixed weekly buy of BTC, ETH or SOL would have done over any period — units, average cost, worst drawdown and the lump-sum comparison.
Average cost calculator
Average, break-even after fees, live P&L, and the exact amount to buy at a price to pull the average to a target.
Crypto profit calculator
Net P&L after fees, ROI on margin, break-even price and liquidation distance — the same trade compared at 1×, 5×, 10× and 25×.
Portfolio tracker
Holdings, live prices, allocation and cost-basis P&L — stored only in your browser, no account, with a stress test that shows what a bad week costs.
Timing and memory when the books are deep, what you learned
Liquidity clock
Tokyo, London and New York sessions in your local time, the overlap where books are deepest, funding stamps, the daily close and the weekend flag.
Chart replay drill
Real candles, dates hidden. Step bar by bar, place trades with a forced stop and 1% risk, get scored in R — and told which lesson each loss came from.
Trade autopsy
Six questions sort a losing trade into structure, timing, stop, size, exit or emotion — a planned cost and a mistake are fixed in opposite ways.
Spaced-repetition review
The quiz questions from lessons you completed come back on a 1-3-7-14-30 day schedule — so the Primer Path actually sticks instead of fading in a week.
Live now →
Adding a tool? Put it in the section it belongs to; a trade-process tool also gets a line in assets/toolflow.js so its numbers travel.