BTCUSD lot size calculator

On a bitcoin CFD with one bitcoin per lot, every dollar the price moves is a dollar per lot. An $800 stop on one lot risks $800; to risk $100, trade 0.12 lot (0.125 rounded down to the 0.01 step).

Bitcoin often moves 3–5% a day — thousands of dollars — so the stop in dollars is large and the position small. Weekend gaps on some brokers can jump past a stop, which a lot size cannot protect against.

Lot size
0.12
Loss at the stop
$96.00
planned $100.00
BTCUSD: per $1 of price, 1 lot
$1.00

BTCUSD lots are rounded down to the lot step, so the loss never exceeds the risk. No prices are fetched: everything is computed in your browser from the numbers above.

BTCUSD lot sizes for a $10 000 account

Stop (dollars of price)0.5% risk ($50.00)1% risk ($100.00)2% risk ($200.00)
3000.160.330.66
8000.060.120.25
1,5000.030.060.13

BTCUSD, 1 per lot: one $1 of price is $1.00 per lot. Lots rounded down to 0.01.

Contract size: check yours for BTCUSD

One BTCUSD lot is 1 bitcoin at most CFD brokers; some use 0.1 or 0.01 BTC. Set yours from the contract specification.

In MetaTrader, right-click BTCUSD in Market Watch → Specification: “Contract size” is the number to put in the calculator. The formula is the same for every instrument: lots = risk ÷ (stop distance × contract size × quote-to-account rate).

Did your BTCUSD trades risk what you planned?

A calculator sizes the next trade. The journal checks the last hundred: it reads every MT4/MT5 BTCUSD trade, shows the real R of each from its stop, and with a max-loss-per-trade rule marks the trades that lost more than you allowed. Free for one account.

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Questions

›How much is one lot of BTCUSD?

Usually 1 BTC on CFD brokers, but some use 0.1 or 0.01 BTC per lot. On exchanges you size in coins directly.

›Why is my bitcoin lot size so small?

Because the stop in dollars is large. Risking $100 with a $1 500 stop gives 0.06 lot — that is the right size, not a mistake.

›Does leverage change the lot size?

No. Leverage changes the margin you put up, not how much you lose at the stop. The lot size comes from the risk and the stop.

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