About the Trading Margin Calculator
Initial margin required to open a position from its size and margin requirement (or leverage).
Also known as: margin required, initial margin, margin requirement.
How to use this calculator
- Enter quantity, price, margin requirement.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Margin = position value × requirement
Worked example
Using the values pre-filled in the calculator above:
- Quantity = 200
- Price = 75
- Margin requirement = 25 %
the calculator returns:
- Margin required: 3,750
- Position value: 15,000
- Implied leverage: 4 ×