Lot Size Compounding Calculator
Turn your own account-balance thresholds into a transparent additive lot ladder, then optionally test the same rule in a month-by-month profit scenario. For example, enter 1,000 balance at 0.01 lot and add 0.01 lot for each additional 1,000 while keeping broker-step rounding and risk consequences visible.
Define the balance-to-lot plan
The calculator applies the same entered balance increment and lot increment to every tier. It does not decide whether the plan is suitable.
Use the same account currency as the entered pip value.
The first entered balance level at which the first planned lot applies.
This is your input, not a suggested lot for the first threshold.
Each later threshold adds this amount to the prior threshold.
Additive change, so 0.01 becomes 0.02 and then 0.03 in the example.
The table can display from 2 through 50 balance thresholds.
Every raw planned lot is rounded down to this entered step.
Entered symbol constraint; the page does not fetch broker specifications.
Rows above this entered limit are flagged, never silently capped.
Used only to expose the monetary and percentage consequence of the ladder.
Enter the symbol- and account-currency-specific value of one pip at 1.00 lot.
Balance and lot thresholds
Entered Balance & Profit Planning 1.0.0.
On smaller screens, scroll horizontally to inspect the complete calculation table.
| Tier | Balance threshold | Raw lot | Rounded lot | Pip value | Reference stop loss | Stop as balance | Entered limit |
|---|
Test the lot ladder in a monthly profit scenario
This second calculator preserves the month-by-month workflow that previously lived on a separate page. It uses the same additive balance-threshold rule, holds lot fixed within each modeled month, and recalculates lot from the next month’s opening balance.
It is not a return forecast. The schedule repeats your win rate, average win and loss, trade frequency, pip value and cash cost as smooth expected-value inputs. It does not simulate the order of trades, drawdown, margin calls or the probability of reaching a threshold.
Enter the monthly scenario
Keep every amount in one account currency and verify the broker fields for the exact symbol.
Monthly balance and lot schedule
Entered Balance & Profit Planning 1.0.0.
On smaller screens, scroll horizontally to inspect the complete schedule.
| Month | Opening balance | Tier | Rounded lot | Modeled trades | Net / trade | Month net | Closing balance | Next lot |
|---|
How the monthly lot-step schedule works
Month one begins with the entered starting balance. The balance-to-lot rule determines one raw lot, which is rounded down to the entered broker volume step. That normalized lot remains fixed for all modeled trades in the month.
The model computes gross expectancy pips from the entered win rate and average win and loss pips. It converts the pips to account currency using the month’s lot and entered pip value, then subtracts the entered cash cost per trade.
Modeled trades per month equal trades per week multiplied by 52 and divided by 12. The month’s net result is added to opening balance. The next month begins from that closing balance and recalculates lot once.
Because lot changes only when a complete entered balance tier has been reached at a month boundary, this schedule is a step function. It is not the same as applying one constant percentage return to balance every period.
If the smooth monthly arithmetic reaches zero or below, the schedule displays zero and stops. If the opening lot is outside the entered broker limits, the model withholds the schedule instead of creating an executable-looking substitute.
Audited monthly example
The audited example begins with 1,000, uses 0.01 lot at the first 1,000 threshold and adds 0.01 lot per additional 1,000. It enters 60% wins, 40 average winning pips, 20 average losing pips, 10 trades per week, pip value 10 per pip at 1.00 lot and zero cash cost.
- Gross expectancy is 16 pips per trade. At 0.01 lot, the modeled net is 1.60 per trade, 16.00 for the first week and 69.33 for the first normalized month. Year one closes at 1,832, a modeled net change of 832.
- Month 15 closes at 2,040, so month 16 is the first month to use 0.02 lot. Under the same unchanged assumptions, month 36 opens with 0.06 lot and closes at 7,032. That ending balance is a conditional arithmetic path, not an earnings forecast.
Reproduce it: select “Load audited example” in the monthly scenario. The same independently checked model and fixture remain in use after consolidation.
Monthly schedule assumptions and limits
- The same win rate, average pips, frequency and pip value are repeated across every month with no confidence interval or regime change.
- Lot is held fixed within a month. Per-trade, daily or equity-triggered resizing is not modeled.
- The schedule uses expected-value arithmetic, not random wins and losses, so it cannot show streaks, drawdown or probability of reaching a threshold.
- Cash cost per trade is fixed in account currency and does not automatically scale with lot or include financing and taxes.
- Margin, leverage, free margin, aggregate exposure, gaps, rejected orders, withdrawals and deposits remain outside the model.
- No ending balance, profit, income, return, threshold, lot, strategy, signal or trade is promised or recommended.
How the balance-to-lot ladder works
The first threshold and first lot anchor the plan. At or above that threshold, the calculator counts complete balance increments and adds the entered lot increment once for each complete tier. The relationship is additive rather than exponential.
A current balance of 2,500 with a 1,000 first threshold and 1,000 increments is in tier two: the 2,000 threshold has been reached, while the 3,000 threshold has not. With 0.01 first lot and 0.01 lot increments, the raw lot is 0.02.
When current balance is below the first threshold, the calculator shows the first entered lot but flags the below-threshold state. It does not invent a smaller lot or imply that the first lot is appropriate for a smaller account.
Every raw lot is normalized down to the entered broker volume step. Minimum and maximum order lots are explicit manual checks. The page does not split a large order, round it up or treat a mathematical row as broker permission.
Reference stop loss equals normalized lot multiplied by stop pips and entered pip value per 1.00 lot. Displaying the loss as a percentage of the tier balance makes it possible to see whether the entered ladder keeps, raises or lowers this one reference risk ratio.
Worked example from the audited fixture
The audited example uses 2,500 current balance, a first threshold of 1,000 at 0.01 lot, and adds 0.01 lot for each additional 1,000. Broker step and minimum are 0.01 lot, maximum is 1.00 lot, the reference stop is 50 pips and entered pip value is 10 per pip at 1.00 lot.
- The current balance is tier two, so the normalized lot is 0.02. Its entered pip value is 0.20 per pip, the 50-pip reference stop is 10.00 and that equals 0.40% of the 2,500 current balance.
- At the displayed thresholds, lots run from 0.01 at 1,000 through 0.06 at 6,000. Each 50-pip reference stop equals 0.50% of its threshold because both balance and lot rise proportionally in this particular input set.
Reproduce it: select “Load audited example” above. The governed fixture was independently recomputed with decimal arithmetic, and the interface rounds only displayed values.
How to interpret the result
- Start with the current tier and next threshold. They translate the user-entered rule without deciding whether a size increase should occur.
- Compare raw and displayed lots. A broker step can delay or flatten small planned increases.
- Review reference stop percentage at every tier. Balance-based sizing can produce very different risk when stop distances or pip values change.
- A constant reference percentage in one example does not make the plan safe; losses, costs, multiple positions, gaps and drawdowns remain outside the table.
- A broker-limit warning means the entered plan no longer matches the declared minimum or maximum. It is not an instruction to split or force the order.
- Use the risk-based Lot Size Calculator separately before a trade because this page never converts a loss budget and stop distance into a recommended volume.
Assumptions and limits
- Thresholds depend on balance only. Equity, floating P&L, reserved margin, withdrawals and deposits are not automatically substituted.
- The lot rule is additive. Percentage, geometric, Martingale, Kelly, volatility-targeting and fixed-fraction rules are outside this route.
- One manual pip value is reused across tiers. The value can differ by symbol, account currency, price and contract specification.
- The reference stop is a disclosure aid, not a stop recommendation or a complete account-risk model.
- The entered maximum checks one order only. Aggregate directional volume, simultaneous positions, leverage, margin and stop-out can bind earlier.
- No threshold, lot, increment, stop, strategy, trade, symbol, broker or expected return is recommended.
Which growth calculator answers which question?
The lot-size compounding route now keeps the balance ladder and its optional monthly lot-step sensitivity schedule together. The fixed-lot Trading Profit Projection remains a separate calendar-arithmetic job, while the Forex Compound Projector remains the canonical percentage-return and recurring-cash-flow route. This separation prevents one smooth scenario from being mistaken for risk-based sizing or an earnings forecast.
| Tool | Primary input | Primary output | Lot changes |
|---|---|---|---|
| Lot Size Compounding | Balance thresholds and additive lot steps | Ladder plus optional monthly lot-step scenario | Optional monthly recalculation |
| Trading Profit Projection | One fixed-lot win/loss scenario | Week, normalized month and 52-week year | No |
| Forex Compound Projector | Entered constant percentage return and cash flows | Periodic percentage-compound schedule | Not lot-based |
Frequently asked questions
- It maps user-entered balance thresholds to additive lot steps, rounds each raw lot down to the entered broker volume step and exposes one reference stop-loss consequence. An optional second calculator applies the same rule to a conditional monthly scenario.
- With 1,000 as the first threshold and balance increment, 0.01 as the first lot and lot increment, the ladder shows 0.01 at 1,000, 0.02 at 2,000 and 0.03 at 3,000.
- No. Every threshold, lot and increment is a user input. The page does not assess suitability, risk tolerance, strategy edge, leverage or simultaneous positions.
- The first entered lot remains visible with a below-threshold warning because Version 1.0.0 does not invent a smaller tier the user did not specify.
- Each raw lot is rounded down to the entered volume step. A result below the entered minimum or above the entered maximum is visibly flagged rather than capped or rounded up.
- It exposes the account-currency and percentage consequence of the entered ladder for one entered stop distance and pip value; it is not a stop or risk recommendation.
- No. Risk-based sizing starts from an intended money-loss budget and stop distance. This route only applies the user’s balance-threshold lot rule.
- No. This route uses an additive user-entered lot increment at completed balance thresholds. Martingale, geometric and loss-triggered sizing rules are outside this calculator.
- Lot is recalculated once from each month’s opening balance. It stays fixed for that modeled month and does not resize after an individual trade.
- No. It repeats user-entered expected-value assumptions without modeling outcome order, uncertainty, drawdown, changing conditions, margin or the probability of reaching a threshold.
- No. Losses, changing stop distances and pip values, costs, gaps, drawdown, margin and aggregate exposure can make actual risk materially different.
Sources and methodology
- MetaQuotes — permitted trading volumes — Official documentation for symbol minimum, maximum, step and aggregate volume properties.
- MetaQuotes — OrderCalcProfit — Official documentation showing why profit depends on symbol, volume, open and close prices and current conditions.
- CFTC — hypothetical trading-system results — Official warning that hypothetical results have material limitations and can differ from actual trading.
Version 1.0.0 performs deterministic local arithmetic and uploads no entered values. The audited examples were recomputed from first principles with decimal arithmetic. Competitor pages informed search vocabulary only; official sources govern the technical and risk boundaries.
Continue from a balance rule to trade risk
Verify the symbol before increasing lot size
Confirm the symbol’s minimum lot, maximum lot, volume step, pip or tick value, contract size, margin method, leverage and stop-out rules. A balance threshold alone does not establish that a larger order is affordable or suitable.
Risk and affiliate disclosure: Leveraged forex and CFD trading can result in substantial losses. Increasing lot size increases monetary exposure, and hypothetical profit scenarios can differ materially from actual results. These are affiliate links, so ForexMT4Indicators.com may receive compensation if you register or trade through them, at no additional cost to you. Availability and terms vary by jurisdiction and broker entity.