Why these numbers matter
Many accounts are lost on size, not on direction. A good setup traded too large turns a normal losing streak into a blown account. Start with the position size and liquidation calculators before you click buy.
Every calculator here counts the costs others leave out: taker and maker fees on both sides, and funding on perpetuals. On short timeframes those costs are often the difference between a winning and a losing strategy.
Coin prices and funding rates load live from the BProud market feed, so the inputs start close to the market. Everything runs in your browser and nothing you type is stored.