Work the trade out before you place it
Four calculators and a portfolio tracker, each one form and a live result. No sign-up, nothing sent anywhere - the arithmetic happens in your browser, and every page writes out the formula so you can check it against your own numbers.
Position size
How much to buy so a stop costs you a fixed number of dollars.
Account, risk %, entry, stopLiquidation price
Where a leveraged position gets closed for you, long or short.
Entry, leverage, side, maintenance %Funding cost
What holding a perp costs per day at the current annualised rate.
Notional, funding %, daysProfit and loss
Net result after both sides of the fee, in dollars and in percent.
Entry, exit, size, fee %Portfolio tracker
What your holdings are worth, how they are allocated and what moved.
Assets, amounts, average costWhy these five
They are the arithmetic a trader does before an order and gets wrong under time pressure: how big, where it dies, what the carry costs, what is actually left after fees, and what the book you already hold is worth. Anything that needs live prices reads our own composite - see the prices page.