Free trading tools
Trading Fees & Slippage Calculator
Use this trading fees and slippage calculator to see the real net result after commissions, percentage fees, spread, and slippage.
Best for
Traders checking whether fees, spread, and slippage change the real outcome of a trade.
What you get
Gross P&L, total costs, net P&L, cost percentage, and execution warning.
Not for
Broker tax reporting, exact exchange rebates, or complex options fee schedules.
Formula
Net P&L = gross P&L - entry fees - exit fees - spread cost - slippage cost
Example
A trade with $300 gross profit can fall to $250 after fees, spread, and slippage.
Hexaplan verdict
Very Hexaplan: execution costs can turn a pretty setup into a weak trade.
Net P&L formula
Net P&L equals gross P&L minus all explicit and hidden execution costs.
Fees and slippage example
A setup that appears to make $300 can lose a meaningful part of its edge when entry fee, exit fee, spread, and slippage are included.
Common execution-cost mistakes
- Backtesting without fees.
- Ignoring spread on small targets.
- Assuming stop fills are perfect.
- Using gross P&L in a journal.
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FAQ
Should I include both entry and exit fees?
Yes. Most real trades have cost on both sides.
Can fees change expectancy?
Yes. A small positive edge can become negative after costs.