How the crypto lot size calculator works
On MetaTrader 4, MetaTrader 5 and similar CFD platforms you trade bitcoin and other coins in lots, and one lot is a contract size set by your broker — often 1 BTC, but some brokers use 0.1, 0.01 or other sizes, and altcoins vary even more. This crypto lot size calculator turns the amount you are willing to lose into the number of lots for BTCUSD, ETHUSD, SOLUSD, XRPUSD, LTCUSD or any other crypto CFD, from your entry price, stop-loss and that contract size.
It also shows the position in coins and money, the margin at your leverage, the value of a 1.00 price move, the profit at your take-profit with the reward-to-risk ratio, and a table of lots at 0.5% to 5% risk. The lot size is rounded down to your platform’s lot step, so the loss at the stop never goes over your limit.
Prices and contract sizes are typed by you; nothing is fetched from a broker. This is arithmetic for planning a trade, not trading advice, and leveraged CFDs can lose money fast.
How to use the Crypto Lot Size Calculator
- Pick the instrument (it fills the coin and an example price) and type your broker’s contract size.
- Enter your account balance and the risk per trade as a percentage or an amount.
- Type the entry price and the stop-loss — as a price, or as a distance with a direction.
- Optionally add a take-profit and your leverage, and check the lot step and minimum lot.
- Read the lot size, the loss at the stop, the margin and the risk table, then copy the result.
Crypto Lot Size Calculator features
Broker contract size
Any number of coins per lot, because brokers do not agree on one standard for crypto.
Rounded the safe way
Lots are rounded down to the lot step; if even the minimum lot risks too much, the page says so.
Long or short
A stop below the entry means a long, above means a short; the take-profit is checked against it.
Margin and reward to risk
Position value ÷ leverage, and the take-profit gain against the stop-loss risk.
Risk table
Lots, loss and margin at 0.5%, 1%, 2%, 3% and 5% of the balance.
The lot size formula
The loss on one lot if the stop is hit is contract size × |entry − stop|. Divide the money you are prepared to lose by that and round down to the lot step: lots = risk amount ÷ (contract size × stop distance). The position in coins is lots × contract size, its value is coins × entry, and the margin is that value ÷ leverage.
Worked example: a 10,000 USD account risking 1% is willing to lose 100 USD. Buying BTCUSD at 60,000 with a stop at 58,800 puts the stop 1,200 away. With 1 BTC per lot, one lot would lose 1,200 USD, so the size is 100 ÷ 1,200 = 0.083 → 0.08 lots (0.08 BTC), losing 96 USD at the stop. The position is worth 4,800 USD, needing 2,400 USD margin at 2×. A take-profit at 63,600 would make 288 USD — a 3 : 1 reward to risk. At a broker with 0.1 BTC per lot the same trade is 0.83 lots.
Contract size, lot step and leverage
- Find the contract size in the platform. In MT5 open Market Watch, right-click the symbol and choose Specification; MT4 shows it under Symbols → Properties. It lists contract size, volume step, minimum volume and margin.
- A 1.00 move is worth contract size × lots. At 1 BTC per lot, 0.10 lot gains or loses 0.10 USD for every 1.00 USD move in BTCUSD.
- Leverage changes the margin, not the risk. The loss at the stop depends on lots and distance; leverage only decides how much of the balance is locked up as margin.
- Retail limits. Many regulators cap leverage on crypto CFDs for retail clients; the UK FCA banned their sale to retail consumers from 6 January 2021.
Related calculators
For crypto futures sized in margin × leverage use the crypto leverage calculator and check the liquidation price. Forex pairs and gold are covered by the forex pip calculator, and shares and futures by the position size calculator.
Crypto Lot Size Calculator FAQ
How do you calculate lot size for BTCUSD?
Lot size = risk amount ÷ (contract size × stop distance). Risking 100 USD with a 1,200 USD stop and 1 BTC per lot gives 0.08 lots after rounding down.
What is 1 lot of bitcoin?
It depends on the broker: commonly 1 BTC, but some brokers define a lot as 0.1 or 0.01 BTC. Check the symbol’s contract specification before trading.
How much is a 0.01 lot of BTCUSD worth?
At 1 BTC per lot, 0.01 lot is 0.01 BTC — about 600 USD of exposure at a 60,000 price, gaining or losing 0.01 USD per 1.00 move.
Does leverage change the lot size?
No. The lot size comes from your risk and stop distance; leverage changes only the margin required.
Why does it say below the minimum lot?
Because even the smallest tradable size would lose more than your risk at that stop. Widen the risk, tighten the stop, or skip the trade.
Is this trading advice?
No. It is a calculator for the numbers you enter.