Pips until margin call

Does anyone know a way to figure out the number of pips an order can go until one gets margin called on the position? Assuming only one position open at a time.

I'm sure there's a way, but I haven't been able to figure it out.

not sure, could be something here

You need to know your account balance, leverage and pip value, spread and broker's rules.
Different brokers have different policies, but the basic formula is the same.

Let's say your account balance (mini in this case) is $500.
And your leverage is 100:1 (1%)
And you buy one lot of Eur/Usd.
Pip value is $1.
Spread is two pips.

Your 1 mini lot is worth $10,000. With 1:100 leverage, your position will require $100 margin. The spread will cost you $2. Your useable account balance is now $398.
$500 less $100 margin requirement = $400. $400 less $2 (cost of spread) = $398.
Pip value = $1, so price can move 398 pips before your margin call.

Note: Your margin call will most likely come sooner though. Most brokers will close out your position when your useable margin is reduced to less than half the amount of the amount of margin required to open the position.
Using the above figures, your margin call would occur when your useable margin dropped to $50, so your call would come if price moved 348 pips.
You wouldn't be able to open a position with less than $150 (100 for margin to open + $50 required to keep position open).

So $500-100 to open postion = $400 -$2 spread = $398 useable margin.
If price moved 348 pips against you, your useable margin would be reduced to $50 (half of the amount required to open the position) and you'd get closed out.

In either case, if you get this close to a margin call, you've let yourself get into deep poop.

Most brokers have a margin calculator that spells it all out according to their own rules.

You may do some math as fellow traders advised and may also use any pip claculator. Oanda has one.

The important thing is spreads vary. They may go upto evelen times of normal (1100% increase) . Use the maximum spread for your calculation. If you are at the boundary of Margin Call with normal spread, any increase in spread will give you margin call even if there is no change in price (excluding spread) and number of open lots.

This is true. If trading around news, spreads might leap by 30 or 40 pips. Even if it's only for a few seconds. Or in Oanda's case, late Friday afternoon and Sunday opens, the spreads are unusually high. Trading in the neighborhood of a margin call is gliding very close to the ground.

Thanks everyone!