Position size calculator
How many shares or lots to buy so a stop-out costs no more than the share of capital you chose.
Enter the numbers to see the result.
How it works
You decide how much of your capital one trade may lose — often 1%. The distance from entry to stop-loss is the loss per unit. Divide the first by the second and round down to whole lots: that is the most you can buy while a stop-out still costs no more than you planned.
A stop placed further away means a smaller position, not a bigger loss. When markets are jumpy (high India VIX), stops get hit by noise more often, so the optional adjustment cuts size further.
The win rate needed to break even shows why reward-to-risk matters: at 1 : 2 you can be wrong two times in three and still not lose money before charges.
Educational tool. It does not recommend any trade, and the result is only as good as the numbers entered. Background: The 1% rule: size every trade from its stop-loss.