Margin Calculator
See the notional value and margin required for a position at a given leverage.
Adjust contract specs
Leverage and margin rules are set by your broker or prop firm — this uses the standard formula, not a specific platform's live requirement.
Why it matters
Margin calls happen when position size and leverage get disconnected from what an account can actually support — this tool is here so that never has to be a surprise mid-challenge.
Prep for a prop challenge in MentorshipMethodology
Margin required
Margin = (Entry Price × Contract Size × Lots) ÷ Leverage- 1Pick your instrument and enter the entry price and position size.
- 2Enter the leverage your broker or prop firm offers for that instrument.
- 3The calculator multiplies price × contract size × lots to get the notional value of the position, then divides by leverage to get the margin your platform will hold.
- 4For indices and commodities, confirm your platform's exact contract size first — it varies by broker and changes the margin figure directly.
Worked example
Inputs
- Instrument
- EURUSD
- Entry price
- 1.0850
- Position size
- 1.00 standard lot
- Leverage
- 100:1
Result
- Notional value
- $108,500
- Margin required
- $1,085
Why it matters
Margin calls happen when position size and leverage get disconnected from what an account can actually support — this tool is here so that never has to be a surprise mid-challenge.
Prep for a prop challenge in MentorshipReferences
- The standard margin formula (notional value ÷ leverage) used across MT4/MT5-style trading platforms.
Figures here are for educational planning only — not trading, investment, or tax advice. Confirm exact contract size, margin, and leverage with your own broker or prop firm before trading real size.
