the risk calculator is a free tool that answers two questions most traders never properly answer:

if you've ever wondered why traders with a "60% win rate" still blow accounts — this is where you find out. position sizing that doesn't account for inevitable losing streaks is the #1 reason accounts go to zero.

you'll find it in the left sidebar inside edgeful, or you can share the public version at edgeful.com/trading-risk-calculator with anyone who doesn't have an account yet — no signup required.

there are only 2 things to enter. that's it.

account size / max drawdown. if you're trading personal capital, enter your account size (like $10,000). if you're trading a prop firm account, enter your max drawdown — not your account size. so if you're on a 50K with a $2,000 max drawdown, enter $2,000. that's the number that actually matters — it's the real capital you're working with before you're out.

risk per trade. how much you're willing to lose on a single trade in dollars. the default is 2% of your account.

once you fill in those 2 fields, you get 3 result cards.

risk per trade (%). your dollar risk converted to a percentage of your account. color-coded so you can see at a glance whether you're in conservative, moderate, aggressive, or extreme territory.

consecutive losses until blown account. worst case scenario — how many losing trades in a row would zero out your account at your current risk level. if you're risking $200 on a $10,000 account, that's 50 trades. if you're risking $2,000 on a $10,000 account, that's only 5.

recommended risk per trade. this is always 2% of whatever account size you entered. on a 100K account, that's $2,000. on a 5K account, that's $100. it's the standard recommendation — survivable for most win rates, leaves room for compounding.

here's the guide for the % card:

here's how that plays out on a $10,000 account / drawdown:

this is the section most traders skip — and it's the most important one.

the table shows the chance of hitting your max consecutive losing streak across 4 different win rates: 40%, 50%, 60%, and 70%. these numbers update dynamically based on the consecutive losses your current risk allows.

so if your risk per trade gives you 5 trades before blowing the account, the table is showing you the chance of hitting 5 straight losses at each win rate.

here's the reality with a 5-trade buffer:

look — if you're risking 20% per trade, you need an unrealistically high win rate just to survive a normal losing streak. that's the math. that's why over-leveraged accounts blow.

here's the guide for that table:

start with your real number. your account size or your prop firm max drawdown — whichever you're actually trading.

then play with the risk per trade. drop it to 1%. raise it to 5%. watch how fast the consecutive losses you can survive drops, and watch how the win rate table changes.

the goal isn't to find the highest risk you can technically take. the goal is to match your risk per trade to your actual win rate so you can survive the inevitable losing streaks without panicking and abandoning your strategy.

if your win rate is closer to 50%, you should probably be at 1% per trade or lower. if you've got a 70%+ win rate strategy with the data to back it up, 2% is reasonable. if you're risking $1,500 on a 10K drawdown, you need a consistent 60–70% win rate over the long term to make that work — not over a week, not over a month, over the long haul.

this is a worst-case calculator. it shows you how many losses in a row would zero you out — not your expected drawdown. real trading mixes wins and losses, so you won't usually hit the worst case. but you need to know it exists.

the win rates in the table are fixed at 40%, 50%, 60%, and 70% for now. if you don't know your actual win rate, get one — backtest your setup, paper trade it, or pull the data from your broker. trading without knowing your win rate is the same as trading without a stop loss.

we built this version simple on purpose. contract-specific calculations (NQ position sizing, tick value math, etc.) are coming. if there's something specific you want added, click the in-app support widget and let us know.