A martingale or grid bot increases its position after every loss. Enter the numbers and see how many losses in a row it takes to empty the account.
The account is emptied after
9
losses in a row
At a 50% win rate, a losing streak this long shows up on average about once every 1,022 trades. A bot that trades often will reach that number.
| Loss # | Lot size | This loss | Total lost | Of account |
|---|---|---|---|---|
| 1 | 0.01 | $2 | $2 | 0% |
| 2 | 0.02 | $4 | $6 | 1% |
| 3 | 0.04 | $8 | $14 | 1% |
| 4 | 0.08 | $16 | $30 | 3% |
| 5 | 0.16 | $32 | $62 | 6% |
| 6 | 0.32 | $64 | $126 | 13% |
| 7 | 0.64 | $128 | $254 | 25% |
| 8 | 1.28 | $256 | $510 | 51% |
| 9 | 2.56 | $512 | $1,022 | 102% |
Each row is one more loss in a row. The lot size grows by the multiplier each time, so the losses grow faster than most people expect. The streak that ends the account is usually shorter than it feels like it should be.
This calculator is a simplified model. It assumes every losing trade loses the same number of pips and ignores spreads, overnight fees and margin calls. In a real account, a margin call usually ends things earlier than the table shows.
Read more in why grid and martingale bots destroy accounts, or check a specific bot with the free Bot Checker.
Educational content only, not financial advice. Trading forex involves substantial risk of loss.