What to know before sizing BTCUSD
Bitcoin has no pips, no lots and no contract size: you hold coins, and each $1 move in the price is $1 per coin. Position size is therefore your dollar risk divided by the dollar distance to your stop: $100 of risk with a $1,500 stop is 0.067 BTC, which is worth about $4,000, not $100. Position value, not risk, is what leverage and margin are charged on.
The market never closes, liquidity thins on weekends and nights, and 5 to 10% moves in a day are not rare, so stop distances are best thought of as a percentage of price. How you hold it matters: spot holdings cannot be liquidated, but leveraged perpetual futures can be, and they charge or pay funding. If your stop is wider than the distance to the liquidation price, the exchange closes you first. For comparison, the CME Bitcoin future is 5 BTC per contract and the Micro Bitcoin future is 0.1 BTC.
Watch for
- Venues differ in minimum order size and price steps. The step above is an example (0.001 BTC), so use what your exchange allows.
- On leveraged products, check the liquidation price against your stop. A stop beyond it is not a stop.
- Fees and funding are part of the risk. The calculator is for price risk only, so add trading fees and funding if you hold leveraged positions.
BTCUSD contract specifications (example)
| Instrument | Bitcoin / US dollar (BTCUSD) |
|---|---|
| Contract size (example) | 1 BTC per unit; $1 move = $1 per BTC (exchange minimums are often 0.001 BTC or smaller) |
| Value of 1 dollar per 1 BTC | $1.00 at the example price |
| Minimum size and step (example) | 0.001 BTC is common; spot exchanges often allow smaller |
| Example price used | 60,000 |
| Currency handling | Priced in USD (or a dollar stablecoin), so no conversion is needed. |
Example specification. Brokers differ: confirm the contract size, minimum size and step in your platform's contract specification before you size a real trade.
Worked examples for BTCUSD
Every number below is computed with the same formulas as the calculator, at the example prices shown, for a USD account.
Value of one dollar at different sizes
At the example price of 60,000, the money value of one dollar on BTCUSD for a USD account:
Sizing a trade on BTCUSD from your risk
Account $10,000, risk 1% ($100), stop 1,500 dollars. Each dollar is worth $1.00 per BTC, so the exact size is 100 ÷ (1,500 × $1.00) = 0.0667 BTC. Rounded down to a tradable size that is 0.066, and the real risk is $99.00.
Stops as a percentage of price
With no pips, crypto stops are often a percentage of price. At 60,000 and a fixed $100 of risk, the size shrinks as the stop widens, and the position value is much larger than the risk.
The math behind the numbers
size = (balance × risk %) ÷ (stop in dollars × value of 1 dollar per BTC)
round down to a multiple of 0.001
position value = size × contract × price (converted to USD)Same formulas as the pip value and position size calculators (BTCUSD numbers above are examples at the price shown). Rounding down keeps real risk at or below your limit.
To run your own numbers for another currency or contract, use the lot size calculator, the pip value calculator or the position size calculator. How much to risk per trade is a separate question, covered in how much to risk per trade, and the step-by-step is in how to calculate position size.
BTCUSD questions
How do I calculate position size for Bitcoin?
Divide your dollar risk by the dollar distance from entry to stop. $100 of risk with a $1,500 stop is 100 ÷ 1,500 = 0.067 BTC. There are no pips or lots, so no pip value is needed.
What is a lot in BTC/USD?
On spot exchanges there is no lot: you buy any amount above the minimum. Some CFD brokers define one lot as 1 BTC, and the CME future is 5 BTC. Check the contract size before applying a lot size from elsewhere.
Why is my crypto position value so much larger than my risk?
Risk is the distance to the stop times the size, while position value is the full price times the size. A stop 2.5% from entry means a position worth about 40 times the money at risk.
How much is one dollar worth on BTCUSD?
For a USD account, one dollar on 1 BTC is about $1.00 at the example price of 60,000, and $0.1000 on 0.1 lot. Brokers differ, so confirm the contract size before you rely on it.
What size should I trade on BTCUSD with $10,000?
It depends on your risk and stop, not on the account alone. With 1% risk and a 1,500 dollar stop the example size is 0.066 BTC, which risks $99.00. Change the stop and the size changes with it. This is arithmetic, not advice.
Know what each dollar is worth, then place the stop.
Once you know what a dollar on BTCUSD is worth, the stop distance sets your risk. These indicators help you find where the stop belongs.
Last updated November 2026. For education only. Not financial advice. Position sizing limits the loss you plan, but stops can slip and losses can exceed the planned amount. Results depend on your inputs and cannot predict future performance.