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Size the trade before you take it

Four calculators in one: how many lots your stop allows, what a move is worth, what one pip pays, and how much margin the position locks up. Built around gold, works for the major pairs too.

 
Edit it if your broker differs
Quote currency is USD
Position size
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Money at risk
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Stop distance
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Value per 1 lot
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if the stop is hit
How this works. The stop decides the size, not the other way round. Your risk in money divided by (stop distance x contract size) gives the lots. If the answer is smaller than your broker's minimum lot, the stop is too wide for that account - widen the account or tighten the idea, never the stop.
Gives the R multiple
Total cost, account currency
Net profit / loss
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Move captured
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R multiple
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profit divided by risk
Position value
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at the open price
Read the R, not the money. A $300 win means nothing on its own. Three hundred dollars off a $100 risk is +3R and repeatable; off a $600 risk it is half a loss recovered. Costs are subtracted here because they are the part most people leave out.
 
Only needed when the quote currency is not USD
Value of one tick
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Value of a 1.00 move
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Per 0.01 lot (micro)
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smallest common size
Gold pips are not standard. Most platforms quote gold to two decimals and call 0.01 a tick, which is $1.00 per standard lot. Some call 0.10 a pip, which is $10.00. Check the instrument specification in your own platform before you trust any pip number, including this one.
Margin required
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Notional value
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what you actually control
Free margin left
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balance minus margin
Move to margin call
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price move against you
Margin is not risk, but it caps you. Leverage decides how much you can hold; the stop decides how much you can lose. The margin-call figure assumes a 100% margin level and no other open positions - your broker's stop-out level is usually higher, so the real number is smaller.
Contract specifications used

The numbers behind the maths

These are the standard sizes this calculator starts with. Brokers vary, which is why the contract size field is editable.

Instrument1 standard lotTickTick value / lotQuote
A worked gold example

$10,000 account, 1% risk, $5 stop

You are long gold at 4,380.00 with the stop at 4,375.00. The account is $10,000 and you risk 1%.

  1. Money at risk: 10,000 x 1% = $100
  2. Stop distance: 4,380.00 - 4,375.00 = 5.00
  3. One lot is 100 ounces, so a 5.00 move costs 5.00 x 100 = $500 per lot
  4. Position size: 100 / 500 = 0.20 lots
  5. Margin at 1:100: 100 x 0.20 x 4,380 / 100 = $876

Notice the margin ($876) is almost nine times the money actually at risk ($100). That gap is the part traders confuse most often.

Honest limits. This is arithmetic, not advice, and it does not know your broker. Contract sizes, tick definitions, leverage caps, swap rates and stop-out levels all differ between brokers and between account types with the same broker. Confirm every figure in your own platform's instrument specification before you place the trade. Nothing here predicts a price or suggests a position.
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