Pips → money
Profit/Loss = pips moved × pip value × lots. Example: buy EUR/USD, +30 pips, 0.10 lot (~$1/pip) = +$30. A 20-pip stop on that size risks ~$20. If your account is $1,000 and you risk 1% ($10), your size for a 20-pip stop is 0.05 lot. Master this one calculation before trading real money.