Scaling Calculator

Plan how your position sizes grow as your account compounds. Choose between fixed fractional risk (same % of growing balance) or scheduled scaling (increase risk % at intervals).

First Trade Size
$200.00
Final Trade Size
$207.32
Final Balance
$10407.28
Growth Factor
1.04×

Position Size Scaling Explained

As your account grows, your position sizes should grow too — otherwise you're leaving money on the table. With fixed fractional scaling, you always risk the same percentage of your current balance. With scheduled scaling, you deliberately increase that percentage at regular intervals.

Risk Amount = Balance × Risk% (may increase with scale schedule)

Position Size Table

TradeRisk %Position $BalanceCum. P&L

Fixed vs Scheduled Scaling

Fixed fractional (default) is the safer approach — you always risk exactly 2% of whatever your account is worth. As your balance grows, the dollar amount grows naturally. Scheduled scaling is more aggressive: you might start at 2% and increase by 10% every 20 trades. After 60 trades, you'd be risking 2.42% per trade instead of 2%.

The trade-off is growth speed vs drawdown risk. Aggressive scaling after a winning streak feels great — but if losses hit right after scaling up, the damage compounds. Most professionals use fixed fractional and let compounding do the work naturally.

Frequently Asked Questions

What is position size scaling in forex?

Position size scaling means increasing your trade size as your account grows. Fixed fractional keeps risk percentage constant (always 2%), so dollar amounts grow naturally. Scheduled scaling bumps up the percentage at set intervals.

Should I scale up after winning trades?

Fixed fractional scaling does this automatically — 2% of a larger balance equals more dollars. Scheduled scaling is more aggressive, increasing the risk percentage regardless of whether you've won or lost.

How fast should I scale position sizes?

Most traders use fixed fractional and let it compound. Aggressive scaling (+10% every 10 trades) accelerates growth but increases drawdown risk if losses hit after scaling. Conservative scaling of +5% every 50 trades is safer.

Is scaling different from the Kelly Criterion?

Yes. Kelly calculates the optimal fraction to risk. Scaling determines how and when to increase that fraction as your account grows. Many traders start at half-Kelly and scale up only after proving consistency.

Compound Calculator

Growth projection with compound returns

Position Size Calculator

Risk-based lot sizing from balance & stop loss

Expectancy Calculator

Expected value per trade