Slippage Cost Calculator
Enter quantity, price and expected slippage % to estimate the notional value and hidden slippage cost of a market order.
Results
Fill in the inputs and click Calculate.
- Notional
- –
- Slippage Cost
- –
Risk disclaimer
This calculator provides estimates for informational purposes only; real slippage varies with liquidity.
What is slippage?
Market orders usually fill at slightly worse prices than expected — that gap is slippage, a hidden cost of thin books or fast markets.
Slippage cost ≈ notional × slippage %; small per unit, it can be significant on large orders.
How to use
- Enter the quantity and the reference price.
- Enter the expected slippage % (e.g. 0.1 = 0.1%).
- Click Calculate to see notional and slippage cost.
Formula
- Notional = Quantity × Price
- Slippage Cost = Notional × Slippage %
Example
Qty 2 at 100 with 0.1% slippage → notional 200, cost 0.20.
At 1% (common in thin pairs) the same order costs 2.00, or 1% of notional.
FAQ
How to reduce slippage?
Use limit orders in tranches, trade liquid pairs and windows, and consider iceberg orders.
Can slippage be predicted?
No. This is a sensitivity estimate; real slippage depends on book depth and speed.