APR vs. APY: Key Differences Explained

APR (Annual Percentage Rate) and APY (Annual Percentage Yield) are financial terms used to describe how loans and investments grow over time, including in crypto markets. Whether you’re staking, borrowing, or lending, understanding these metrics is crucial for calculating returns or costs.


What Is APR?

APR measures the annual interest accrued on an investment or loan without compounding. It’s a straightforward percentage of the principal amount.

How APR Works

  • Example: A 100 ETH loan at 5% APR yields 5 ETH after one year (total: 105 ETH). If extended for another year, the same 5% applies only to the original 100 ETH, resulting in 110 ETH after two years.
  • Formula:
    Final Amount = P × (1 + (R × T))
    Where:
  • P = Principal (initial amount)
  • R = Interest rate
  • T = Time (in years)

APR is pro-rated for shorter periods (e.g., 6 months at 5% APR = 2.5% return).


What Is APY?

APY accounts for compounded interest—interest earned on previously accrued interest. This makes it higher than APR for the same nominal rate.

How APY Works

  • Example: 100 ETH at 24% APY with semi-annual compounding grows to 125.44 ETH after one year (vs. 124 ETH under APR). Monthly compounding would yield 126.82 ETH.
  • Formula:
    APY = (1 + R/N)^N − 1
    Where:
  • R = Annual interest rate
  • N = Number of compounding periods

👉 Discover how compounding boosts crypto yields


Key Differences: APR vs. APY

Metric Compounding? Best For
APR No Simple loans, short-term investments
APY Yes Savings, staking, long-term growth

Critical Note: Crypto APRs/APYs are often variable due to market volatility.


Is Crypto Staking APY Profitable?

High APYs in DeFi (e.g., 500%+) come with risks:
Token volatility: A 99% price drop can erase gains.
Platform security: Choose audited protocols to avoid rug pulls.

👉 Avoid common DeFi scams with these tips


Where to Find APR/APY in Crypto

  • Staking pools (e.g., Ethereum 2.0, Solana validators).
  • Lending platforms (Aave, Compound).
  • Crypto savings accounts (BlockFi, Celsius).

FAQs

1. Which is better: APR or APY?

APY reflects true earnings/costs due to compounding. For borrowers, lower APR is preferable; for investors, higher APY boosts returns.

2. Can APR and APY be the same?

Only if interest compounds annually (N=1 in the APY formula).

3. Why do crypto platforms offer high APYs?

To attract liquidity, but always verify sustainability and risks.

4. How does volatility affect APR/APY?

Market swings can drastically alter token values, making projected returns unreliable.

5. Are fixed APYs safer?

Yes, but rare in crypto—most rates fluctuate with market conditions.

6. What’s a “good” APY in DeFi?

Rates above 10% warrant scrutiny. Balance high yields with platform credibility.


Final Thoughts

Understanding APR and APY helps you:
– Compare loan costs vs. investment returns.
– Avoid deceptive “too good to be true” offers.
– Plan long-term crypto strategies.

Always research platforms, diversify holdings, and prioritize security over short-term gains.