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Position size calculator

Use this free position size calculator to plan the right trading volume before entry. Set your account, risk, instrument, and stop-loss distance so the position matches the amount you are actually willing to lose.

Position size before entryRisk-first trade planningBuilt for disciplined traders
Calculator

Position size calculator

Plan the trade size first. Then use your journal to compare planned risk with actual risk after the trade is saved.

Calculator provided through FXVerify. Results are educational estimates and may differ from your broker's final order ticket because of contract size, account currency conversion, spread, commission, margin rules, and execution.

Want to save this calculation with the actual trade?

Use TradeDoctor AI to journal planned risk, actual risk, emotions, rule breaks, and AI Assistant feedback after execution.

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Guide

Position size calculator: complete guide

A position size calculator helps traders decide how many units or lots to trade from account risk and stop-loss distance. It is the bridge between a chart idea and real account exposure.

How to calculate position size

First calculate risk amount from account balance and risk percentage. Then divide that risk amount by the amount lost per unit if the stop is hit. For leveraged products, include contract value, tick value, or pip value.

Why position sizing matters

Two trades can have the same entry quality but very different risk if the stop distances are different. Position sizing keeps the loss consistent even when market structure changes.

What markets it supports

The same logic applies to forex, metals, indices, crypto, and CFD products. Always verify how your broker converts price movement into account currency.

01

Account risk

Risk percentage should be chosen before the trade. During drawdowns, many traders reduce risk to protect decision quality.

02

Stop distance

The stop should mark invalidation. If it is placed only to create a bigger position, the risk plan is already compromised.

03

Contract multiplier

CFDs and broker-specific instruments require a multiplier check. Without it, the calculated position can be dangerously wrong.

04

Actual vs planned risk

Journal the planned size and the executed size. Small differences reveal slippage, spread, and behavior patterns.

Position sizing and consistency

Consistent sizing does not guarantee profit, but it makes performance easier to evaluate. When risk is stable, your journal can show whether the strategy has a process instead of being distorted by random oversized trades.

Use it with TradeDoctor

The calculator gives the plan. Your journal proves the behavior.

After calculating the setup, log the trade in TradeDoctor AI to see whether actual risk, rules, emotions and outcomes matched the plan.

Plan day rules with Text Journal before the session.
Capture trades with Snap Journal, import, or fast manual entry.
Use AI Assistant to summarize journal patterns that calculators cannot capture.
Planned risk1.0%
Actual risktracked
Assistant notereview
FAQ

Position size calculator FAQ.

Clear answers about using this calculator and applying the result in real trading decisions.

What is a position size calculator?
It estimates trade quantity from account risk, entry, stop loss, and instrument value.
Can I use it for crypto?
Yes for spot or linear crypto when quantity and P&L map directly to account currency. For broker-specific or leveraged products, verify contract rules, fees, funding, and exact exchange P&L.
Why can results differ from my broker?
Broker contract values, spreads, fees, leverage rules, and rounding can change the final order size.
Is this financial advice?
No. It is an educational planning tool.

Calculate the plan. Then journal the result.

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