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Warning: binary options are high-risk. Most retail accounts lose money and you could lose everything you deposit. Risk warning

BinaryChooser

Position size calculator for binary options

Choose how much of your balance to risk per trade and per day. The calculator converts that into a stake, a daily loss limit and the losing runs you should expect.

Enter your numbers

Your results

Stake per trade
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Daily loss limit
–
Losses in a row before the daily limit
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Losses in a row to halve the balance (stake = % of current balance)
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Odds of a losing run that hits the daily limit
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Average result per day
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These tools show arithmetic, not predictions. A win rate from the past says nothing certain about the future, and most retail binary options accounts lose money.

Check your numbers on a practice account

A demo account shows your real win rate with virtual money before any deposit is at stake.

Try the free Pocket Option demo

What the numbers mean

Position sizing can't turn a losing method into a winning one, but it decides how long your money lasts and how much a bad day costs. Risking a fixed percentage means stakes fall after losses and rise only after gains.

Losing runs are normal even with a decent win rate. The run probability shows how often a trading day will include enough losses in a row to reach your daily limit.

The maths

  • Stake = balance × risk per trade
  • Losses before the daily limit = daily limit ÷ risk per trade
  • Losses to halve the balance = ln(0.5) ÷ ln(1 − risk per trade)
  • Average result per day = trades × stake × (win rate × payout − (1 − win rate))

Worked example

A $500 balance with 2% risk per trade means a $10 stake. A 10% daily limit ($50) is reached after 5 losses in a row, and 35 straight losses would cut the balance in half.

Habits that protect your balance

  1. 1Risk a small, fixed slice of the balance per trade; 1–2% is a common maximum.
  2. 2Set a daily loss limit and stop for the day when you reach it.
  3. 3Never raise the stake to win back what you lost.
  4. 4Take profits out regularly instead of leaving everything at risk.
  5. 5Log every trade so you know your true win rate.

Quick answers

How much should each trade be?

A common rule is 1–2% of the balance at most. With 500 in the account that means 5 to 10 per trade.

What daily loss limit makes sense?

Many traders stop after losing 5–10% of the balance in a day, before frustration pushes stakes up.

Can position sizing make binary options profitable?

No. It controls risk and how long the balance lasts; only a win rate above break-even makes the average result positive.