| Price Change | IL % | IL Dollar Loss |
|---|---|---|
| -75% | -20.00% | $2,000 |
| -50% | -5.72% | $572 |
| -25% | -1.03% | $103 |
| +0% | 0.00% | $0 |
| +25% | -0.62% | $62 |
| +50% | -2.02% | $202 |
| +100% | -5.72% | $572 |
| +200% | -13.40% | $1,340 |
| +400% | -25.46% | $2,546 |
Educational tool. Not financial advice. The IL formula assumes a constant-product AMM (Uniswap V2-style); concentrated liquidity (V3) and active management change the actual loss.
Impermanent Loss — Crypto Liquidity Pool & DeFi Calculator
Visualize how price divergence causes impermanent loss in your LP position. The IL curve shows loss across all price changes. Add pool fee APY to see if fees compensate for IL. Includes a reference table for quick lookup.
How to calculate impermanent loss
- Enter the initial prices of the two pooled assets when you added liquidity.
- Enter the current prices of both assets.
- The calculator compares the LP position's current value against just holding the two assets unchanged.
- The difference — always a loss relative to hodling at the moment of divergence — is impermanent loss.
Common use cases
- Evaluating whether LP fees earned on a Uniswap or similar position have covered impermanent loss.
- Deciding between a concentrated liquidity range and a wide range in Uniswap v3 based on expected price movement.
- Stress-testing an LP position against a 50% move in either direction before deploying capital.
- Choosing stable-stable pairs (USDC/USDT) over volatile pairs to minimise IL for conservative LPs.
Frequently asked questions
Is impermanent loss always a real loss?
Only if you withdraw at the diverged prices — if prices return to the initial ratio, IL vanishes, which is why it is called 'impermanent'. Fees earned can compensate when prices move slowly but mean-revert.
How does concentrated liquidity change IL?
Uniswap v3 concentrated positions magnify both fees earned and IL within the range. Outside the range, the position becomes single-sided with no further IL but also no more fees.
Which pair has the lowest IL risk?
Correlated assets (stablecoin/stablecoin, wrapped/native same asset) have the least IL because prices rarely diverge much. Volatile/stable pairs have the most IL risk.
Is my data stored?
No. Calculations happen in your browser.
About impermanent loss
Impermanent loss occurs when the price ratio of tokens in a liquidity pool changes from when you deposited. The larger the divergence, the greater the loss compared to simply holding. Pool trading fees can offset this loss.
- Interactive IL curve from -90% to +500% price change
- Current position highlighted on the curve
- Fee APY compensation analysis (fees vs IL)
- LP value vs HODL value comparison
- Reference table for common price changes
- No data leaves your browser
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Sources (2)
- Adams, H., & Zinsmeister, N. (2020). Uniswap v2 Core. Uniswap whitepaper (constant-product market maker, x · y = k).
- Angeris, G., Kao, H.-T., Chiang, R., Noyes, C., & Chitra, T. (2021). An analysis of Uniswap markets. Cryptoeconomic Systems, 1(1).
These are the original publications and regulations the formulas in this calculator are based on. Locate them by author and year on Google Scholar, SSRN, or the U.S. Government Publishing Office.