Capital required to open a position at a given leverage.
1 standard lot of EUR/USD at 1:30 leverage needs ≈ $3,799.67 in margin on a USD account — that is 3,333 EUR (100,000 ÷ 30) converted at today's ECB rate. At 1:100 the same position needs roughly a third as much; EU retail is capped at 1:30 on majors, US retail at 1:50.As of Jul 2, 2026 · ECB reference rates via frankfurter.dev
Leverage lets you control a position larger than your deposit. Margin is the slice of your account the broker locks while the trade is open.
margin = notional ÷ leverage
For 1 standard lot of EURUSD at 1:30 leverage, the notional is 100,000 EUR. Margin = 100,000 ÷ 30 = 3,333 EUR — which converts to your account currency at the current rate.
EU retail traders are typically capped at 1:30 for major pairs, 1:20 for non-majors, 1:10 for commodities. US retail is capped at 1:50. Pro and offshore accounts can go higher.