What Is Slippage in Crypto? (And How to Avoid It on Swaps)

Summarize with AI

Slippage means the percentage difference between the expected price of a crypto trade and the actual price you receive in your wallet. For example, 1% slippage on a $1,000 swap results in a price difference of $10. Even small values like 0.5%-2%, if they repeat on swaps regularly, can add up over time. Maybe you don’t see it right now, but in the long term there will be real financial costs. 

The good news is you can reduce the impact, and in this article you’ll know how. You’ll understand slippage, how it happens, and if there is something positive about it. 

Key Takeaways

• Slippage is the difference between expected and actual execution price, shown as a percentage.
• It is most common on DEXs using AMM (automated market maker) pools.
• Slippage tolerance is a user-set maximum; exceed it and the transaction reverts.
• Comparing rates across exchanges before swapping reduces the cost of slippage.

What Is Slippage in Crypto?

Imagine going to a store where you chose a product priced at $10. You wander back and forth in the store and maybe wait in line for a bit. When you get to the checkout, the price has risen to $10.50. Similarly, in volatile markets of crypto, the price you expect to pay may not be the price you actually receive.

This happens when there’s high demand and/or low liquidity in the market. The formula for calculating is Slipp.(%) = ((Expected Price – Actual Price) / Expected Price) x 100.

Sources: Binance Academy’s explanation of slippage.

Positive vs. Negative Slippage

Trading involves risk; slippage results in receiving less than expected.

Slippage can be negative, meaning you receive less, but it can be positive as well, meaning you get more of the asset than expected. If you think you’ll get 0.05 ETH for 100 USDC, you can receive 0.049 ETH (negative slippage of -2%) or 0.051 ETH (positive slippage of +2%).

Why Does Slippage Happen in Crypto?

Price slippage in crypto occurs for various reasons. If you are a regular trader on decentralized platforms, you know how often it’s the case. Here are the main causes:

1. Price volatility between order submission and block confirmation.
   The volatility of crypto is the primary cause of all inconsistencies while trading. If the market moves quickly (and it does all the time), the price change from the time you place your order to when it’s finally confirmed.
2. Low liquidity pools.
   A trade of $5,000 on a pool with only $50,000 in liquidity can cause a price impact of 9%. It’s $450 of slippage itself; mind all the fees.
3. Large trade size relative to pool depth.
   Similar take to the previous one. The larger the trade, the faster the pool is getting shallow, and the more noticeable costs occur.
4. Network congestion.
   Delayed transaction confirmations increase the time window for prices to move wherever the demand goes. You’ll receive a much more predictable amount in 2 minutes of transaction time rather than in 42 minutes.
5. MEV and Sandwich attacks.
   But don’t be overwhelmed with market impacts. There are some shady entities too! MEV refers to Maximal Extractable Value and has a couple of morally gray forms. A sandwich attack is performed by bots. When a bot detects a pending swap in the mempool, it places a buy order just before it and a sell order just after. That way, a third party is profiting from the price movement the victim’s trade causes. In certain markets, bots can exploit slippage to profit at the expense of retail traders. More on Ethereum’s official overview of MEV and sandwich attacks.

Slippage on CEX vs. DEX: Key Differences

The slippage mechanism on centralized exchanges (CEX) works differently from decentralized exchanges (DEX). Mostly because they are very different in general.

Percentage ranges are approximate and change with market conditions.

CEX (Centralized Exchange) uses an order book. One user sells, another one buys. On a CEX, prices slip mainly when market orders consume multiple price levels in the order book. The more liquid the market, the more stable prices are. For example, popular pairs like BTC/USDT or ETH/USDT usually slip under 0.1%.

DEX operates on an Automated Market Maker (AMM) protocol that uses liquidity pools and mathematical formulas (most commonly x*y=k) to determine prices. Every trade shifts the price. Slippage is an inherent characteristic of AMMs: large trades move the price within the pool.

What Is Slippage Tolerance in Crypto?

Slippage tolerance refers to the maximum slippage percent you are willing to accept. On most DEXs (e.g., Uniswap, PancakeSwap, etc.) the default tolerance is 0.5%. If actual value exceeds yours, the transaction automatically reverts, and you pay gas but no tokens.

Here’s what happens at each level:

• Low tolerance is 0.1% to 0.3%.
  Common for high-liquidity pairs but often leads to frequent failed transactions in volatile markets.
  
• Balanced tolerance starts with 0.5% up to 1%.
  It works for most standard swaps.
  
• High tolerance is 1% to 5%.
  Suitable for low-liquidity tokens but increases sandwich attack risk.

Percentage ranges are approximate and change with market conditions.

Rule of thumb: set tolerance slightly above the price impact shown in the swap interface. More info on the topic on Uniswap’s official documentation on swaps.

Compare Swap Rates Before You Lose to Slippage

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How to Set Slippage Tolerance (Step-by-Step)

1. Open the swap interface (e.g., Uniswap, PancakeSwap).
2. Click the settings icon.
3. Find the “Slippage Tolerance” or “Max Slippage” field.
4. Check the price impact shown for your swap.
5. Set tolerance to 0.1-0.2% above the price impact.
6. Transaction irreversibility: once confirmed on-chain, crypto swaps cannot be undone. Verify addresses carefully.
7. Confirm the swap and monitor for errors. If the transaction fails, raise the tolerance by 0.1% increments.

How to Calculate Slippage in Crypto

Let’s use a formula from before with the real digits.

You expect 0.05 ETH for 100 USDC at a rate of 2,000 USDC/ETH.
Actual execution: 0.049 ETH at 2,040 USDC/ETH.
Slippage = (2,000 – 2,040) / 2,000 x 100 = -2% (negative slippage of 2%).

This means you received 2% less than expected. High-volume trades will add to this result. Most DEX interfaces display estimated slippage before confirmation. Always check it beforehand.

How to Minimize Slippage on Crypto Swaps

1. Trade during low-volatility periods

That means if there are major news events going on, market moves suddenly, and economic reports and announcements coming up one after another, it’s better to wait. Aim to trade when the market is stable or during off-peak hours. Early mornings on weekdays are a good choice.

2. Use high-liquidity pools

Liquidity pools with more assets do not impact prices that much. If you are going to trade a large amount of crypto, try to trade on platforms with deep liquidity, such as Ethereum or Bitcoin pairs on major exchanges (like Binance or Coinbase). A well-filled pool keeps prices more stable during execution. Decentralized exchanges (DEXs) with low liquidity might cause you some significant costs.

3. Break large trades into smaller chunks

Larger trades impact the pool’s price more, especially in smaller or less liquid pools. By splitting a large trade into multiple smaller ones, you reduce the price movement per trade.

4. Use limit orders instead of market orders on centralized exchanges (CEXs)

Limit orders allow you to set the price at which you’re willing to buy or sell. This way, the order won’t execute unless the market reaches your desired price. That prevents the sudden price shifts associated with market orders. It may take longer for your order to fill, but you’ll be protected.

5. Compare rates across platforms before executing

Slippage varies greatly between platforms, especially for less liquid pairs. On Swapzone you can compare live rates from multiple exchanges to find the best available deal. The most favorable prices potentially reduce the impact.

6. Set slippage tolerance at the minimum

Set your tolerance as low as possible. Many DEX platforms default to 0.5%, but if you’re trading a highly volatile or low-liquidity asset, consider reducing the tolerance to 0.1-0.2% for more control.
Note that failed transactions on Ethereum still consume gas. To minimize costs, use your DEX’s transaction simulation feature if available, or adjust settings before signing.

7. Avoid very low-cap tokens

Low-cap tokens generally have small liquidity pools, and they are more prone to large price changes when traded. If you’re trading tokens with small market caps or low liquidity, price slips are basically inevitable. Stick to high-liquidity pairs when possible.

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FAQ: Slippage in Crypto

Q: What is slippage in crypto?

Slippage is the percentage difference between the price you expect to get when placing a trade and the price you actually receive when it executes. This can happen on market orders or DEX swaps when prices shift or liquidity gets consumed before execution. It’s the realized cost of getting your trade filled versus the quoted price.

Q: What is slippage tolerance in crypto?

Slippage tolerance is a setting on many DEXs that indicates the maximum percentage of price movement you accept before the transaction automatically reverses. If the execution price moves beyond your tolerance, the swap fails, and you typically pay only network/gas fees. Many platforms default around 0.5%–1% for liquid assets.

Q: How do I calculate slippage in crypto?

You calculate it by comparing the expected price to the actual execution price and expressing the change as a percentage. The standard formula is: Slippage (%) = ((Expected Price – Actual Price) / Expected Price) x 100. This breaks down how much price moved against you (or in your favor) compared to what you anticipated.

Q: What does “insufficient slippage, try a higher value” mean?

That message appears when the market movement goes above your slippage tolerance setting. The price shifted more than you allowed, so the trade was reverted. Increasing tolerance slightly (in small increments) can allow the trade to go through if you’re comfortable with the risk.

Q: What is slippage in DeFi vs. on a CEX?

In both cases it is still the difference between the realized and expected price, it’s the mechanics that are distinct. On DeFi/DEXs, slippage is natural to AMM liquidity pools and is controlled via tolerance settings. Trades actually shift the pool price through a formula. On CEXs, it happens when market orders traverse the order book and fill at multiple price levels due to limited liquidity at the best price. 

Conclusion

Slippage is when the price you expect and the price you get differ during crypto trades. Knowing how to set tolerance and comparing rates between exchanges will help you reduce the costs of your transactions. To follow best practices, use Swapzone to compare rates from different platforms and make sure you’re getting the best deal.

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