LP Impermanent Loss Calculator

What does LP Impermanent Loss Calculator do?

The LP Impermanent Loss Calculator computes impermanent loss (IL) and full position economics for any constant-product AMM liquidity pool — including Uniswap v2, Uniswap v3, SushiSwap, PancakeSwap, and every x*y=k DEX. Provide two token IDs and it fetches live prices from CoinGecko automatically, or enter your own price ratio for manual analysis. It outputs not just the raw IL percentage but a full suite of LP risk metrics: breakeven fee APY, position health score, HODL alpha, rebalancing signal, and concentrated liquidity range utilization for v3 positions.

Why use LP Impermanent Loss Calculator?

• Accurate v2 and v3 math: Uses the exact constant-product formula IL = 2√k/(1+k) - 1 for full-range pools and out-of-range boundary logic for concentrated Uniswap v3 positions — not rough approximations.
• Live price integration: Fetches real-time token prices from CoinGecko and real pool APY data from DeFiLlama so your IL analysis reflects current market conditions, not stale inputs.
• Scenario sweep across 14 price points: One run generates the full IL curve from -95% to +10x price change, letting you stress-test a position before committing capital.
• Actionable signals, not just numbers: The Position Health Score (0–100 composite), Rebalancing Signal (hold/rebalance/exit), and Optimal Hold Period translate raw IL math into decisions you can act on immediately.
• Fee offset modeling: Enter your pool's fee APY and holding days to see whether fee income covers the IL — the key question every LP provider needs answered before entering or exiting a position.

How to use LP Impermanent Loss Calculator

1. Go to the Apify Store and search for "LP Impermanent Loss Calculator," then click Try for free.
2. In the Input tab, enter the CoinGecko IDs for your two tokens (e.g., ethereum and tether) — or leave them blank and enter your own price ratios manually.
3. Set initialValueUsd to your LP deposit size (default $10,000) and holdingDays to how long you have held or plan to hold the position.
4. Optionally enter the pool's feeApyPct from DeFiLlama or your AMM dashboard to model fee income against IL.
5. Enable scenarioMode to generate the full IL curve across 14 price scenarios, or leave it off for a single-point calculation.
6. For Uniswap v3 concentrated positions, fill in v3LowerRatio and v3UpperRatio (e.g., 0.8 and 1.25 for a ±25% range).
7. Click Start and view results in the Dataset tab. Export as JSON, CSV, or Excel.

Input

Field	Type	Default	Description
tokenACoingeckoId	string	—	CoinGecko ID for token A (e.g. ethereum). Leave blank for manual mode.
tokenBCoingeckoId	string	—	CoinGecko ID for token B (e.g. tether). Usually a stablecoin for USD pools.
initialPriceRatio	number	—	Price of token A / token B at pool entry. Required for non-current entry prices.
currentPriceRatio	number	—	Current A/B price ratio (manual mode only, when CoinGecko IDs are not set).
initialValueUsd	number	10000	Total USD deposited into the LP at entry.
feeApyPct	number	0	Pool fee APY in percent (e.g. 10 = 10% APY). Used to calculate fee income offsetting IL.
holdingDays	integer	365	Days held or planned holding period. Used to prorate fee income and annualize IL.
scenarioMode	boolean	false	If true, runs IL calculation across 14 price scenarios (0.1x – 10x).
v3LowerRatio	number	—	Uniswap v3 lower price bound as a ratio vs entry (e.g. 0.8 = −20%). Leave blank for full-range v2.
v3UpperRatio	number	—	Uniswap v3 upper price bound as a ratio vs entry (e.g. 1.5 = +50%). Leave blank for full-range v2.

Output

[
  {
    "mode": "auto",
    "token_a": "ethereum",
    "token_b": "tether",
    "initial_price_ratio": 2400.0,
    "current_price_ratio": 3200.0,
    "price_change_pct": 33.33,
    "il_pct": -1.48,
    "il_usd": -148.12,
    "lp_value_usd": 10703.88,
    "hodl_value_usd": 10851.65,
    "net_pnl_vs_hodl_usd": -148.12,
    "fee_income_usd": 82.19,
    "net_lp_return_usd": -65.93,
    "breakeven_fee_apy_pct": 1.48,
    "position_health_score": 74,
    "rebalancing_signal": "hold",
    "hodl_alpha_annualized_pct": -0.52,
    "il_risk_category": "low",
    "optimal_hold_period": "long_term",
    "lp_vs_hold_comparison": "lp_clearly_better",
    "fetched_at": "2026-09-02T10:00:00Z"
  },
  {
    "mode": "scenario",
    "scenario_label": "2x price increase",
    "price_change_pct": 100.0,
    "il_pct": -5.72,
    "il_usd": -572.43,
    "lp_value_usd": 14142.14,
    "hodl_value_usd": 15000.0,
    "net_pnl_vs_hodl_usd": -572.43,
    "breakeven_fee_apy_pct": 5.72,
    "position_health_score": 51,
    "rebalancing_signal": "rebalance",
    "il_risk_category": "moderate",
    "fetched_at": "2026-09-02T10:00:00Z"
  }
]

Data fields

Field	Description
mode	Calculation mode: auto, manual, or scenario
token_a / token_b	Token identifiers used in this calculation
initial_price_ratio	A/B price ratio at the time of LP entry
current_price_ratio	A/B price ratio at the time of calculation
price_change_pct	Percentage price change from entry to current
il_pct	Impermanent loss as a percentage of initial deposit
il_usd	Impermanent loss in USD
lp_value_usd	Current value of the LP position in USD
hodl_value_usd	Value if tokens had been held instead of providing liquidity
net_pnl_vs_hodl_usd	LP value minus HODL value (negative = IL drag)
fee_income_usd	Estimated fee income accumulated over holdingDays at feeApyPct
net_lp_return_usd	LP P&L after subtracting IL and adding fee income
breakeven_fee_apy_pct	Minimum fee APY required to fully offset IL at current price change
position_health_score	Composite 0–100 score (higher = better LP economics)
rebalancing_signal	Action recommendation: hold, rebalance, or exit
hodl_alpha_annualized_pct	LP return vs HODL, annualized
il_risk_category	Risk tier: minimal, low, moderate, high, extreme
optimal_hold_period	short_term, medium_term, long_term, or never_profitable
lp_vs_hold_comparison	Verdict: lp_clearly_better through lp_significantly_worse
concentration_risk	Uniswap v3 concentration risk (v3 positions only)
price_range_utilization_pct	Estimated % of time price is within the v3 range
fetched_at	ISO 8601 UTC timestamp of the calculation

Cost estimation

The actor charges $0.001 per calculation (Pay-Per-Event). A single-point calculation is one event; scenario mode generates 14 events.

Scenario	Calculations	Estimated cost
Single IL check (manual or auto)	1	$0.001
Scenario sweep (14 price points)	14	$0.014
100 scenario sweeps for backtesting	1,400	$1.40

FAQ

Q: What is the difference between v2 and v3 mode? A: V2 (full-range) uses the standard constant-product formula that applies to Uniswap v2, SushiSwap, PancakeSwap, and most AMMs. V3 (concentrated liquidity) models positions with custom price ranges — capital is more efficient inside the range but IL becomes total loss outside it. Fill in v3LowerRatio and v3UpperRatio to activate v3 mode.

Q: Where does the fee APY data come from? A: You can enter the fee APY manually from your AMM dashboard, or the actor can optionally pull it from DeFiLlama's yield API if you provide a DeFiLlama pool ID. The pool APY is used only to estimate fee income; it does not affect the IL calculation itself.

Q: Why does my LP value differ from what the AMM UI shows? A: The actor computes theoretical LP value based on price ratios and the AMM formula. Small discrepancies may arise from rounding, price feed latency, or pool-specific factors like protocol fees or liquidity depth. Use this actor for planning and comparative analysis rather than precise accounting.

Disclaimer: This actor is for educational and research purposes only. Impermanent loss calculations are mathematical estimates based on AMM formulas and public price data. They are not financial advice. Always verify numbers against your AMM's own UI before making liquidity management decisions. Cryptocurrency investments carry significant risk of loss.

Keywords: impermanent loss calculator, LP impermanent loss, Uniswap v2 impermanent loss, Uniswap v3 concentrated liquidity, AMM liquidity pool risk, DeFi LP calculator, liquidity provider breakeven, IL percentage calculator, CoinGecko price ratio, DeFi yield vs HODL

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