Position size calculator
Good risk management starts with position size. Decide how much of your balance you are willing to lose if the stop loss is hit, and this calculator tells you the lot size that matches it.
- Amount at risk
- 50.00 USD
- Pip value per lot
- 10.00 USD
- Units
- 20,000
Indicative prices, not a live feed. Your MT5 platform shows live prices and exact values before you trade.
How to use the Position size calculator
- Enter your account balance and pick the account currency.
- Choose the % of your balance you are willing to risk on this trade (many traders use 1–2%).
- Enter the distance to your stop loss in pips.
- Choose the instrument and read the lot size, rounded down to 0.01 lots.
- Balance: 5,000 USD
- Risk: 1%
- Stop loss: 25 pips
- Instrument: EURUSD
Trade 0.20 lots, so a 25-pip stop costs at most $50.
Frequently asked questions
What is position sizing?
Position sizing means choosing the number of lots so that, if your stop loss is hit, you lose only the amount you planned, for example 1% of your balance.
How much should I risk per trade?
Many traders risk 1–2% of their balance per trade so a run of losses doesn't wipe out the account. The right level depends on your own situation and experience.
Why is the lot size rounded down?
MT5 accepts lot sizes in steps of 0.01. Rounding down keeps your actual risk at or below the amount you chose.
Does the stop loss guarantee my maximum loss?
No. In fast markets or over weekend gaps, a stop loss can be filled at a worse price than requested, so the real loss can be larger.
Other trading tools
Risk warning: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money. Calculator results are estimates based on indicative prices and are not investment advice. Risk disclosure