Simply place this indicator on your chart, specify the number of Lots you would like to trade, and it will display the amount of Free Margin required to execute the position.

No need to calculate the value for yourself any longer. Works on any timeframe, and with any symbol, no matter what your account currency is.

This calculation uses the following formula:

({base} / {Home Currency}) * units) / (margin ratio)

For example, suppose:

Home Currency = USD
Currency Pair = GBP/CHF
base = GBP; Quote = CHF
base / Home Currency = GBP/USD = 1.5819
Units = 1000
Margin Ratio = 20:1

Then, margin used:
= (1.5819 * 1000) / 20
= 79.095 USD

Happy trading!

NOTE: The example formula is for reference purposes only. The actual indicator uses live data from your trading account (margin ratio, current prices, etc).