What is slippage: why expected price and fill price can differ
Quick answer
What this page helps you decide
For slippage, confirm the entry path and prerequisites first, then review fees, limits, risk checks and the follow-up verification step.
- Confirm wallet readiness
- Review order type and fee impact
- Check balances and trade history afterward
This page is maintained by the BN All Coin - Binance Coin Glossary and Market Lexicon editorial team and cross-checked against platform rules, product docs and internal topic pages.
If platform rules change, treat the official documentation as the final source of truth.
Definition and role
Slippage is the gap between the price you expected when placing an order and the average price where the order actually filled.
It is not automatically a platform error. It often comes from liquidity, order size, volatility and order type interacting at the same time.
Why it matters
- Market orders can consume multiple price levels in the book.
- A thin pair can move more even with a modest order.
- Fast candles or news conditions can make the displayed price stale quickly.
- Slippage is part of real trading cost, separate from the visible fee line.
Checks before you continue
- Check order book depth before using a large market order.
- If price control matters, consider a limit order, smaller slices or a more liquid pair.
- After execution, compare expected price, average fill price and order type.
- Use the Binance slippage check guide before increasing size.
Related reading
- Binance Convert vs Spot: speed, price visibility and when each route fits
- How to buy USDT on Binance: payment methods, costs and network checks
- How to buy BTC on Binance: choose the route, estimate cost and plan custody
Facts checked on 2026-07-04.