Somebody quotes you an APY. What do you actually end up with a year later? The answer involves a few adjustments most marketing pages skip. Here's how to run the math yourself, plus a calculator link that saves you the arithmetic if you'd rather just plug numbers in. Yields below are illustrative โ real numbers move constantly.
APR vs APY, the first fork
Two words, different math. APR (annual percentage rate) is the simple rate โ 5% APR on 10 ETH means 0.5 ETH after a year, no compounding. APY (annual percentage yield) assumes rewards get reinvested โ 5% APY compounded daily on 10 ETH gives about 0.513 ETH after a year.
The gap is small at low rates and moderate frequencies, but it matters at high rates. A 20% APY isn't a 20% APR โ it's roughly a 18.2% APR compounded daily. When protocols pick APY for marketing and APR for internal accounting, be careful comparing across sources.
The basic formula
A rough take-home model:
net_yield = (network_apr - operator_fee) x holding_periodWhere:
- network_apr is the current base staking reward rate on the chain.
- operator_fee is what the staking protocol takes, commonly around 10% on Ethereum liquid staking โ figures shift constantly.
- holding_period is fractional years.
With compounding: substitute (1 + daily_rate)^days - 1, where daily_rate is network_apr / 365. Most rewards accrue often enough that the compounding formula matches real outcomes closely.
A worked example
Say Ethereum's protocol staking APR is 3%. You liquid-stake 10 ETH with a protocol charging a 10% operator fee. Your take-home APR is 3% x 0.9 = 2.7%.
- APR-only, one year: 10 x 0.027 = 0.27 ETH.
- Compounded daily, one year: 10 x ((1.0000740)^365 - 1) = roughly 0.274 ETH.
- Over five years compounded: roughly 1.43 ETH.
Not exciting. Not meant to be. See how staking rewards get paid for where that yield actually comes from.
What the formula does not include
The math above gives token yield. It doesn't include:
- Token price change. If ETH drops 30% over your holding period, no amount of staking yield saves the dollar value.
- Tax. Most jurisdictions treat rewards as taxable income when they accrue. That can knock 20-40% off the effective return.
- Slashing. Historic slashing losses are small but nonzero. Add a small drag term if you want to be conservative.
- Depeg risk. A depeg is unrealized loss until you sell โ but if you have to sell during one, it becomes real.
- MEV and priority fees. Some protocols pass these through, some don't. They can meaningfully boost yield on Ethereum.
Comparing networks quickly
| Chain | Illustrative net yield | Note |
|---|---|---|
| Ethereum solo staking | ~3.0% | Requires 32 ETH and setup |
| Ethereum liquid staking | ~2.7% | After ~10% protocol fee |
| Solana delegated | ~6.5% | Inflation-driven; validator fee applies |
| Cosmos-family | 5-20% | High nominal, high inflation offset |
Cosmos-style chains are the trap for beginners. A 15% APY that comes from an inflating supply doesn't necessarily buy you more purchasing power โ sometimes it just keeps you level with dilution. Compare real inflation-adjusted yields, not headline numbers. See the staking vs liquid staking piece if the different models feel fuzzy.
How to calculate your expected crypto staking rewards in practice
The staking rewards calculator handles the arithmetic. To use it well, plug in these inputs: amount you plan to stake in tokens (not dollars); realistic annual yield after protocol fees, not the marketing APY; holding period, since longer windows let compounding matter more; and an assumed token price change if you want a dollar-terms view. Try a flat scenario, a mild bull scenario, and a mild bear scenario. The output is a range, not a promise. Real outcomes will differ.
Stop reading marketing pages and start pushing numbers through the formula above. Use the current on-chain rate, subtract the operator fee, apply compounding, hold constant assumptions across chains when comparing. Take-home rarely lines up with the big number on the homepage; sometimes it's a full percentage point lower. That gap isn't a scam, it's the ordinary cost of pooling and operating validators. Knowing what you'll actually receive lets you compare staking against other passive income options without getting fooled by APY theater. Illustrative numbers today, illustrative numbers next month, but the method stays the same.