How much does a guaranteed stop-loss order actually cost me?

How this is calculated

• Pip value follows the same convention as our other forex calculators: pip size times units when USD is the quote currency, or pip size times units divided by the exchange rate when USD is the base currency. Pip size is 0.0001 for most pairs and 0.01 for JPY-quoted pairs.
• Stop-loss risk in dollars equals pip value times the stop-loss distance in pips, before the premium is added.
• The premium cost is either the premium in pips times pip value, or the premium percent times the position's notional value, depending on which method your broker uses.
• Total protected risk is the stop-loss risk plus the premium cost, since the premium is paid up front whether or not the stop is ever triggered.
• When a take-profit distance is entered, the risk-reward ratio without the premium is just take-profit pips divided by stop-loss pips. The ratio after the premium subtracts the premium cost from the dollar reward and divides by the total protected risk instead, since the premium reduces the win and adds to the loss at the same time.
• A guaranteed stop-loss order fills at the exact price you set no matter how far or how fast the market moves through it. A regular stop fills at the next available price once triggered, which can be far worse during a genuine gap. Brokers that offer guaranteed stops, mostly UK and EU CFD and spread-betting brokers, charge for that certainty, and this tool prices out what that charge is actually costing the trade.