Deposit Interest Calculator
Demand & time deposit interest calculation with maturity summary
Maturity Total
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Interest Earned
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💡 Time deposits use simple interest. Demand deposits calculate daily. Results are for reference only.
How to Maximize Deposit Interest — Fixed vs Flexible Terms
Longer terms offer higher rates, but early withdrawal drops to demand-deposit rates. A CD ladder strategy (staggered maturities) balances returns with liquidity.
Deposit Interest Formula
Simple interest: Interest = Principal × Rate × Years. Compound (auto-renew): Final = Principal × (1 + Rate)^Years. Demand deposits earn ~0.1-0.5% daily.
Frequently Asked Questions
How much interest does $10,000 earn in a CD?
At a typical 1-year CD rate of ~4.5% APY, $10,000 earns about $450 in a year. High-yield savings accounts currently offer competitive rates with more flexibility.
CD vs high-yield savings account — which is better?
CDs lock in a fixed rate for the term but penalize early withdrawal. HYSA offers liquidity with slightly lower rates. A laddered CD approach gives you both: staggered access with higher yields.
What happens if I withdraw a CD early?
Early withdrawal typically forfeits 3-6 months of interest. The penalty depends on the CD term — longer terms have larger penalties. Check your bank's specific policy.