US30 lot size calculator (Dow Jones)

Lot size for the Dow Jones CFD from your risk and your stop in index points. Set your broker’s contract size, then pick your prop firm account to see whether the stop fits its daily loss limit and max loss.

1Your account

Fills in the balance and the firm's limits for a fresh account

2Your trade

From your broker. MT5: Market Watch → right-click US30 → Specification → Contract size. Usual: 1.

US30 · $1 per point per lot
Position5.00 lots
At risk$5001% of balance
Per point$5at this size

Trade 5.00 lots to risk $500 at your stop.

FX conversions use the ECB reference rates of 2026-10-13. Sizes are rounded down, so the risk never goes over what you set. A stop doesn't guarantee your fill: in fast markets the loss can be larger.

Worked example

A 100-point stop on US30 (contract size 1) costs $1 per point for one lot. With $500 at risk: $500 ÷ (100 × $1) = 5 lots, losing $500 at the stop.

On a prop account the stop also has to fit the firm’s limits: what is left of today’s daily loss limit, the room to the max loss. Pick your firm above and the calculator sizes the trade inside all of them.

With your prop firm’s limits

The same calculator, opened on a firm’s accounts with their daily loss limit, max loss filled in.

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Other instruments: Gold lot size calculator (XAUUSD) · NAS100 lot size calculator (US100) · Futures position size calculator · all instruments

Questions

How much is one point on US30?

With a contract size of 1, one Dow point is $1 per lot; brokers using a larger contract size multiply it. MT5 shows it under Symbol → Specification → Contract size.

How do I calculate lot size for US30?

Lot size = risk in dollars ÷ (stop in points × contract size). With $500 at risk, a 100-point stop and a contract size of 1: 500 ÷ (100 × 1) = 5 lots.

Is US30 the same as YM?

US30 is the broker CFD on the Dow; YM and MYM are the CME futures. YM is worth $5 a point per contract and MYM $0.50; the futures calculator has both.