Free calculator · No login required

Trade on a plan,
not a feeling.

Kingstone calculates your exact position size from a fixed dollar risk, logs every trade automatically, and shows you — in plain numbers — where your edge actually is.

Try the free calculator Explore features

No credit card required. Instant web calculator access.

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LIVE

Professional forex candlestick chart with glowing technical indicators

Max Risk $40.00

Lot Size 0.13 lots

Target R:R 1 : 2.0

Free Forex Position Size Calculator

The exact same math that powers the Kingstone journal — free to use on its own, no sign-up required.

Position Size

Pip Value

Risk : Reward

Your trade

Instrument

Account Balance ($)

Max Risk per Trade ($)

Direction

Entry Price

Stop Loss Price

Result

Position Size (Lots)–

Stop Distance (pips)–

Pip Value / Lot–

Risk if stopped out–

This is the same formula used in the Kingstone journal: your lot size is sized so a stop-loss hit always costs exactly your Max Risk $ amount.

Powerful Toolkit

Everything a disciplined trader actually checks.

No fluff dashboards. Just the numbers that tell you whether your process is working.

Auto position sizing

Set one fixed dollar risk per trade. Kingstone works out the exact lot size from your entry and stop — every single time.

Full trade log

Pair, strategy, entry/exit, commissions, comments — with gross PnL, net PnL, and R:R calculated automatically as you type.

Performance dashboard

Equity curve, win rate, average R:R, and PnL broken down precisely by pair and by trading strategy.

Multi-instrument

Majors, gold, Nasdaq, Dow, and crude oil out of the box — correct pip and contract conventions built right in.

Private by default

Every account's balance, trades, and custom settings are strictly isolated and encrypted at the database level.

Free education

Practical, no-fluff articles on elite risk management and psychological control — curated for serious practitioners.

Process

Three steps. No spreadsheet required.

Streamline your workflow from risk calculation to post-trade review.

STEP 01

Set your risk

Enter your total account balance and the fixed dollar amount you are willing to lose on this specific trade setup.

STEP 02

Log the trade

Input your pair, entry price, and stop loss. Kingstone instantly calculates your precise lot size and risk-to-reward ratio.

STEP 03

Review and adjust

Your dashboard updates immediately, revealing clearly which pairs and strategies are driving your equity growth.

From The Blog

Trading education, no fluff.

Short, practical reads on risk management, trader psychology, and systematic execution.

Risk Management

Why Position Sizing Matters More Than Your Win Rate

A 70% win rate can still blow up an account if sizing is ignored. Here is the mathematical reality that keeps professional traders alive.

6 min read Read article

Psychology

Revenge Trading: How to Recognize It Before It Costs You

The trade that immediately follows a painful loss is rarely about the chart. Here is how to catch yourself in the act.

5 min read Read article

Strategy

R:R Ratios Explained: Why 1:2 Beats 1:1 Over Time

Two traders can have identical win rates and completely divergent outcomes. It almost always comes down to this single ratio.

4 min read Read article

Future Milestones

Kingstone isn't just a calculator.

The free tools are our front door — here is what is currently being engineered behind the scenes.

● LIVE

Free Calculators

Lot size, pip value, and risk-to-reward calculations instantly accessible with zero signup.

● LIVE

Trading Journal

Full trade log featuring automated position sizing and private isolated user accounts.

◷ GROWING

Education Hub

Expanding library of practical guides on robust risk management and professional trade planning.

○ COMING SOON

Community

Opt-in public consistency profiles focused on metrics and process rather than raw PnL bragging.

Free To Start

Start your journal today.

Takes less than two minutes. No credit card required to access core calculators and initial journal storage.

Create your free account

Trading involves risk of loss. Built for disciplined execution.

Trade on a plan,
not a feeling.