Compound Interest Calculator (Crypto)
Free Compound Interest Calculator for crypto. Project compound growth for staking, yield farming, and savings with recurring contributions.
Year-by-Year Growth
| Year | Balance | Deposited | Interest |
|---|---|---|---|
| Year 1 | $2,396.07 | $2,200.00 | +$196.07 |
| Year 2 | $3,970.10 | $3,400.00 | +$570.10 |
| Year 3 | $5,744.78 | $4,600.00 | +$1,144.78 |
| Year 4 | $7,745.68 | $5,800.00 | +$1,945.68 |
| Year 5 | $10,001.65 | $7,000.00 | +$3,001.65 |
This assumes a constant rate and regular contributions. Crypto yields vary over time. Not financial advice.
How to use Compound Interest Calculator (Crypto)
The Compound Interest Calculator projects the growth of a cryptocurrency holding over time assuming periodic reinvestment of gains at a fixed rate. Enter your principal amount, annual interest or yield rate, compounding frequency, and investment duration to see the final value, total interest earned, and a year-by-year growth breakdown.
Use it to model staking, yield farming, or lending returns over multi-year periods. Compare daily compounding versus monthly to see the real-world impact of reinvestment frequency. For a DCA scenario, enter your regular deposit in the Monthly Contribution field; it is added at the end of every month and compounds along with the starting amount.
What do the inputs mean?
Principal is your starting investment amount in US dollars. Annual rate is the expected percentage gain per year, use historical averages conservatively. Compounding frequency determines how often gains are reinvested: daily (365), weekly (52), monthly (12), quarterly (4) or yearly (1). Duration is specified in years (Investment Period), with quick picks from 1 to 10.
For cryptocurrency, rates are highly variable, the calculator assumes a constant rate which is a simplification. Use conservative estimates (e.g., 5–10% for major coins, 30–50% for DeFi staking) to avoid overoptimistic projections. Taxes on realized gains during each compounding period may reduce the effective return, factor in your local tax rate for a more accurate net projection.
How to interpret results correctly
Future Value is the balance at the end of the period, and the ROI beneath it is the total gain on everything you put in over the whole period, not a yearly yield. With the defaults ($1,000 Initial Investment, $100 Monthly Contribution, 12% APR, 5 years, Daily) the tool shows $10,001.65 against $7,000 Total Deposited: $3,001.65 of interest and an ROI of +42.88%. That is far below 12% times 5 years because most of the money arrives as monthly top-ups with little time left to earn. The bar under the cards shows the same split, 70% deposits and 30% interest.
Simple Interest Would Be is what the same deposits would earn if every reward were paid out instead of restaked. Compound Advantage, repeated in the Compound Bonus card, is the extra earned on rewards that stayed in, so dividing it by Total Interest Earned gives the interest-on-interest share: $631.65 of $3,001.65, about 21%, for the defaults. To check by hand, enter $1,000, $0 monthly, 20%, 2 years, Yearly: the result is $1,440.00, and its $40 Compound Advantage is 20% of the first year's $200. In the Year-by-Year Growth table the Interest column is cumulative, so subtract the row above to get one year's interest.
What scenarios can you model?
The three Quick Scenarios match common ways of earning on crypto. Steady Saver ($5,000 plus $100 a month at 8% for 5 years, Monthly) fits a stablecoin savings or lending balance you top up from income: it ends at $14,796.91 from $11,000 deposited, and the lending calculator adds platform fees to that picture. High Yield ($1,000 plus $250 a month at 20% for 3 years, Daily) fits liquidity-pool rewards that a vault restakes every day and ends at $14,050.05 from $10,000. To see what the top-ups alone contribute, rerun a scenario with Monthly Contribution at $0 and compare the two Future Values.
Crypto yields rarely stay put, and the tool applies one rate to every year, so model a change by chaining two runs. Say you put $2,000 into a farm and re-add the rewards every week: at 50% with Weekly compounding, year 1 ends at $3,289.58. Enter that figure as the new Initial Investment and run 4 years at 12%: $5,313.27. Keeping 50% for all 5 years shows $24,075.73, about 4.5 times as much. For total interest, add the Interest Earned from both runs, since the second run treats the carried-over balance as a deposit.
What should you check before you act?
- Match the inputs to how the platform actually pays. The rate field is an APR, compounded at the frequency you pick, so an advertised APY goes in with Yearly to avoid compounding it twice. For an APR, set Compound Frequency to how often rewards really return to the earning balance, not how often the dashboard updates: a vault that restakes daily is Daily, a farm you harvest by hand once a month is Monthly. Reading the rate type right matters more than the frequency: Steady Saver ends at $14,811.43 on Daily, $14,796.91 on Monthly and $14,641.11 on Yearly. The APY/APR calculator converts a quote.
- Next, check what the dollar figures stand for. The tool grows the balance by the rate alone, so for staking rewards paid in the coin you can type coin amounts into Initial Investment (and Monthly Contribution, if used), read every result as coins and multiply by a price you choose; the staking calculator handles validator commission and a token price for you. Enter the rate net of any commission or vault fee taken from rewards. Note lock-up or unbonding periods, since restaked rewards may not be withdrawable on demand. In many countries rewards can be taxable when received even if restaked; the Interest column's yearly change gives each year's amount.
What mistakes make this calculation wrong?
- The costliest mistake is projecting an incentive rate for years. At the 100% preset, $1,000 compounded Daily for 5 years shows $147,401.94, and over 96% of that interest is interest on interest, so the whole figure rests on the rate never falling. Rates that high are usually paid in newly issued reward tokens, and they tend to shrink as more deposits share the same emissions or as the token price drops. Use such a rate for one year at most and chain a lower one after it, or run the same plan at 5% and 12% to bracket the outcome.
- Other errors come from reading the output too literally. The dollar figures assume the asset's price never moves: for a staked coin, the rate grows your coin count, while its dollar value follows the market, which the tool does not model. Monthly Contribution is a fixed dollar top-up added at the end of each month, which suits a stablecoin position; buying a volatile coin each month at changing prices is a job for the DCA calculator. Clear the default $100 Monthly Contribution before modelling a one-off deposit, and remember that no results appear until Initial Investment, the rate and the period are all above zero.
What is a realistic range to expect?
How much compounding frequency adds depends almost entirely on the rate. With $1,000, $0 monthly and 1 year, the ROI under Future Value on Daily versus Yearly is +3.05% vs +3.00% at the 3% preset, +8.33% vs +8.00% at 8% and +22.13% vs +20.00% at 20%. At 50% and 100% the Daily figures jump to +64.82% and +171.46%, while Monthly gives +63.21% and +161.30%. At the lower presets, where stablecoin savings and staking on large networks usually sit, frequency is a detail; at the top presets the result swings with how often rewards are really restaked.
Over short horizons, interest on interest is a small slice of the gain. For a single deposit compounded Monthly, Compound Advantage is about 7% of Total Interest Earned at 5% over 3 years, 18% at 8% over 5 years, 48% at 12% over 10 years and 68% at 20% over 10 years. Monthly top-ups lower the share because new money has less time to earn: Growth Plan shows 39%, against 48% for the same $10,000 without its $500 a month. When most of a projected gain is interest on interest, it rests on a high rate held for years; compare it with tokenized Treasury yields in the RWA yield calculator.
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Frequently asked questions
How often should I compound crypto rewards?
It depends on gas fees vs. reward size. If your staking reward is $50 and gas costs $2, daily compounding makes sense. But if gas costs $15, weekly or even monthly compounding is more efficient. The optimal frequency is when compounding gains exceed transaction costs — our calculator helps find that breakeven point.
What's the difference between APY and APR?
APR (Annual Percentage Rate) is the simple interest rate without compounding. APY (Annual Percentage Yield) includes the effect of compounding. For example, 12% APR compounded monthly equals 12.68% APY. The more frequently you compound, the larger the gap between APR and APY. DeFi protocols usually advertise APY, which looks higher.
Does daily compounding significantly outperform monthly?
At typical DeFi rates of 5-15%, daily instead of monthly compounding adds only about 0.01-0.1 percentage points a year (5.13% vs 5.12% APY at 5%, 16.18% vs 16.08% at 15%), so at those rates it barely matters. At 100% APR the gap grows to about 10 points (171.5% vs 161.3% APY). The real question is whether gas fees eat the compounding benefit. On L2s with $0.01 gas, daily compounding almost always wins.
Can compound interest work against me in DeFi?
Yes. If you borrow at a compound rate, your debt grows exponentially. A 15% APR loan compounded daily becomes 16.18% APY in effective cost. Leveraged positions compound losses on both sides — your collateral earns less while your debt grows faster. Always compare the borrow APY against your yield APY, not the APR.
What's the Rule of 72 for crypto?
Divide 72 by your annual return rate to estimate doubling time. At 12% APY, your crypto doubles in ~6 years. At 50% APY (aggressive DeFi), it doubles in ~1.4 years. At 100% APY, ~0.72 years. This quick mental math helps evaluate yield farms — but remember that 100% APY rarely sustains beyond a few weeks.
How do gas fees affect compounding returns?
Gas fees create a minimum viable compounding amount. If restaking costs $2 in gas and you compound daily, you need at least $730/year in rewards ($2/day) just to break even on fees. On Ethereum mainnet at $5-10 per transaction, monthly compounding often beats daily. On L2s and Solana with sub-cent gas, daily compounding is viable for any amount.
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