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Futures position size calculator

Find how many CME contracts fit the dollars you plan to lose at your stop, rounded down to whole contracts.

CME ES · $500 riskBudget $500
03605101520 pointscontractsevery size that risks $50020$400 at risk

1 ES contract 8 points × $50.00 a point = $400.00 per contract: $400.00 of $500 at risk; a 2nd would risk $800.00.

8 points

Contract specs from CME Group. The loss is counted at the stop price, before commission and slippage; a stop can fill worse than its price.

Read as text
  1. The budget: $500 at the stop. One ES contract moves $50.00 a point, and the count is whole contracts, rounded down.
  2. The curve is every size that risks exactly $500: the stop is the box's width, the size its height, the money at risk its area.
  3. Stop of 4 points: $200.00 per contract, so 2 ES contracts fit, $400.00 at risk (80% of the budget).
  4. Stop of 12 points: one ES contract already risks $600.00, over the budget, so no size fits.
  5. Your stop of 8 points: $400.00 per contract, so 1 ES contract fits, $400.00 at risk (80% of the budget).
  6. The same stop on MES, a tenth of ES: 12 MES contracts, $480.00 at risk (96% of the budget).

CME: $50 × S&P 500 Index. Tick 0.25 = $12.50. CME specification, checked 2026-10-08.

What you plan to lose if the stop is hit.

From entry to stop. A point is a 1.00 move in the price: 1 index point.

Brokers and prop firms can charge per contract. Blank leaves costs out.

Contracts that fit your risk
1 ES

One ES risks 32 ticks × $12.50 = $400.00 at an 8-point stop (32 ticks). $500.00 ÷ $400.00 = 1.25, rounded down to 1: $400.00 at risk, 80% of your budget.

Tick value: $12.50 per 0.25 move

Point value: $50.00 per 1.00 move

Risk per contract: $400.00 at this stop

On MES, one-tenth the size, the same stop risks $40.00 per contract: up to 12 MES, risking $480.00.

The loss is calculated at the stop price. Slippage and gaps through the stop are not included, and neither is commission: a fast market or a session gap can fill beyond the stop.

Risk at an 8-point stop (32 ticks) on ES, by number of contracts, against your $500.00
ContractsRisk at the stopShare of your risk
1$400.0080%
2$800.00160% — over
3$1,200.00240% — over
4$1,600.00320% — over
5$2,000.00400% — over

The math — contracts = risk ÷ (stop ticks × tick value), rounded down

Tick values and point values for CME futures

From CME Group's contract specifications, checked 2026-10-08; point value = tick value ÷ tick size.

SymbolContractContract unitTickTick valuePoint value
ESE-mini S&P 500$50 × S&P 500 Index0.25$12.50$50.00
MESMicro E-mini S&P 500$5 × S&P 500 Index0.25$1.25$5.00
NQE-mini Nasdaq-100$20 × Nasdaq-100 Index0.25$5.00$20.00
MNQMicro E-mini Nasdaq-100$2 × Nasdaq-100 Index0.25$0.50$2.00
YME-mini Dow ($5)$5 × Dow Jones Industrial Average1$5.00$5.00
MYMMicro E-mini Dow$0.50 × Dow Jones Industrial Average1$0.50$0.50
RTYE-mini Russell 2000$50 × Russell 2000 Index0.1$5.00$50.00
M2KMicro E-mini Russell 2000$5 × Russell 2000 Index0.1$0.50$5.00
CLCrude Oil (WTI)1,000 barrels0.01$10.00$1,000.00
MCLMicro WTI Crude Oil100 barrels0.01$1.00$100.00
GCGold100 troy ounces0.1$10.00$100.00
MGCMicro Gold10 troy ounces0.1$1.00$10.00
What a point is here, and where the specs come from

The twelve contracts in the calculator, from CME Group's contract specifications as checked on 2026-10-08. A point here is a 1.00 move in the price: one index point, or $1 a barrel or a troy ounce. Point value = tick value ÷ tick size.

Each symbol links to its CME specification page. The exchange can change a contract, and a platform can show a different symbol for the same one; check the contract details on your platform before you rely on a number.

How to size a futures position: four worked examples

$500 at an 8-point ES stop: 1 contract, $400.00 at risk; the same stop in MES fits 12.

ES, ES with commission, crude oil, the Dow and gold

1. ES with a $500 risk and an 8-point stop. 8 points is 32 ticks of 0.25, and 32 × $12.50 = $400.00 per contract. $500 ÷ $400.00 = 1.25, rounded down to 1 contract, risking $400.00.

2. The same trade with commission. Enter an assumed round-turn cost of $4.50 per contract and the risk per contract becomes $404.50: still 1 contract, now $404.50 at risk. Your broker's or prop firm's actual charges are the ones to enter.

3. Crude oil with a 40-tick stop. CL moves $10.00 a tick, so 40 ticks is $400.00 per contract and $500 buys 1 contract ($400.00). MCL moves $1.00 a tick: $40.00 per contract, so 12 MCL fit, risking $480.00.

4. The Dow and gold. A 40-point stop on YM ($5 a point) risks $200.00, so $500 fits 2 YM ($400.00) or 25 MYM ($500.00). A $5 stop on gold, 50 ticks of $0.10, risks $500.00 on GC and $50.00 on MGC: 1 GC or 10 MGC.

Micro and E-mini contracts: the 1:10 relation

Each micro is a tenth of its full-size contract, so a size between whole E-minis can usually be built in micros.

Why micros size more finely

Every micro in the calculator is one-tenth of its full-size contract and ticks in the same price increment, so its tick value is one-tenth too: $1.25 against $12.50 on the S&P 500, $0.50 against $5.00 on the Nasdaq-100. Ten micros carry the same exposure and the same risk at a stop as one full-size contract.

That is what makes sizing finer. With $500 and an 8-point stop, ES leaves a choice between 1 contract ($400.00, 80% of the budget) and 2 contracts ($800.00, over it). MES fits 12 contracts, $480.00 or 96% of the budget. A size that falls between whole E-minis can usually be built in micros.

What the calculator leaves out

Slippage and gaps, commission unless you enter it, and margin.

Each, in a sentence or two

Slippage and gaps. The calculator assumes the whole position exits at the entered stop price; slippage or a gap can make actual fills worse and the loss larger. Execution depends on the order type: a stop-limit trades only at its limit or better, while a CME stop with protection is restricted to an exchange-defined price range, so some or all contracts can remain unfilled.

Commission and fees. Brokers and prop firms can charge commission and exchange fees per contract. They are left out unless you enter a round-turn cost, which is then added to the risk per contract.

Margin. The margin a broker holds to open a position is set by the exchange and the broker. It decides whether you can open the position, not how much you lose at the stop.

Prop firm contract limits

Firms cap how many contracts you can hold, and the calculator does not know your cap.

Two examples, with sources

The prop firms we have covered cap how many contracts you can hold, and the calculator does not know your cap. Topstep's $50,000 Trading Combine, for example, allows 5 minis or 50 micros, as read from Topstep's help center for our Topstep rules guide on 2026-10-08. Apex Trader Funding's $50,000 evaluation lists a maximum of 6 contracts in the archived help-center pages our Apex guide used; how micros count against that limit, we could not confirm. Firms change their rules, so check your firm's current terms, and size so that a stop-out also stays inside your daily loss limit: the daily loss limit calculator shows what is left of it.

Method and privacy

Method: Risk per contract = stop in ticks × tick value, plus any commission you enter; contracts = your risk ÷ risk per contract, rounded down. Presets are CME Group contract specifications checked 2026-10-08. Slippage and gaps through the stop are not modelled, so a real loss can be larger.

Calculations run entirely in your browser — nothing you type is uploaded. Copy and download actions save your calculation locally. The site may record coarse tool actions under its privacy policy, without inputs, results, file contents or filenames.

Common questions

How many futures contracts should I trade?

Divide the dollars you plan to risk by the loss on one contract at your stop, and round down. With $500 at risk and an 8-point stop, one ES contract ($50 a point) loses $400, so the answer is 1 contract; one MES ($5 a point) loses $40, so 12 contracts fit, risking $480.

What is the tick value of ES, NQ, MES and MNQ?

All four tick in 0.25 index points. One tick is $12.50 on ES, $5.00 on NQ, $1.25 on MES and $0.50 on MNQ, so a full point is worth $50, $20, $5 and $2. Those are CME's contract specifications; check them against the symbol details on your platform.

How do micro futures compare with E-minis?

Each micro in the calculator is one-tenth of its full-size contract and ticks in the same increment: MES is $5 × the S&P 500 against ES's $50. So 10 MES move like 1 ES, and the same holds for MNQ and NQ, MYM and YM, M2K and RTY, MCL and CL (100 against 1,000 barrels) and MGC and GC (10 against 100 ounces).

How do I convert a stop in ticks to dollars?

Multiply the ticks by the tick value. A 40-tick stop on crude oil (CL), at $10.00 a tick, risks $400 per contract; on Micro WTI (MCL), at $1.00 a tick, it risks $40. In price terms 40 ticks is $0.40 a barrel, on 1,000 or 100 barrels.

Does the calculator include commission and slippage?

Commission only if you enter it, and slippage never. Brokers and prop firms can charge commission and exchange fees per contract; enter your round-turn cost and it is added to the risk per contract. The calculation assumes the whole position exits at the entered stop price; actual fills can be worse. Stop-limit orders and CME stops with protection restrict execution prices, so some or all contracts can remain unfilled.

What if one contract risks more than my budget?

The calculator shows 0 rather than rounding up. With $300 to risk and a 20-point stop, one NQ contract risks $400, so no NQ contract fits; the micro, MNQ, risks $40 at the same stop, so 7 MNQ fit, risking $280. Moving the stop only to make a size fit changes the trade itself.

Goes deeper

Limits and trading risk

These tools calculate from your inputs, supported historical records or explicitly labelled teaching examples. They do not verify a live account, predict future returns or confirm that a broker or prop-firm rule has been met. Missing costs, floating losses and changed market conditions can materially change outcomes. Trading can lose the capital committed to it; check the stated method and your account specifications.

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