What the calculation includes
The calculator does not multiply size by the top price. It walks the order-book levels on both legs and deducts every known route cost.
- trading fees on the buy and sell legs;
- withdrawal fee, gas, and swap fee on a DEX leg;
- slippage across order-book levels;
- the share of size available at current depth.
Net profit = sale proceeds − purchase cost − all route fees
How to read the result
The output is an estimate at data time: a positive figure means the route clears the current book and fees, not that the outcome is guaranteed. If available depth is below your size, the calculator shows the fillable share.
Updated: 2026-07-18
Frequently asked questions
Why is net profit smaller than the visible spread?
The spread uses top-of-book prices, while the calculator uses your size's average fill price minus every route fee.
What does "60% of the size fills" mean?
At current depth only that share clears with a positive estimate; the rest would fill at worse prices.
Does the estimate guarantee the trade outcome?
No. The book and fees can change before execution; the calculator gives the best estimate at data time.