Daily Compound Interest Calculator
See how daily compounding grows your money faster. Compare daily, monthly, quarterly, and yearly compounding side by side.
📝Investment Details
Compounding Comparison
$22.3K
+$12.3K
$22.2K
+$12.2K
$22.1K
+$12.1K
$21.6K
+$11.6K
💡 Daily vs Yearly Advantage
+$664 extra
by choosing daily compounding over yearly
Growth Comparison: All Frequencies
Daily Compounding
Interest calculated and added to your balance every single day — 365 times a year.
Side-by-Side Comparison
Compare all compounding frequencies in one chart to see the difference.
Multi-Currency
Switch between $, £, ₹, A$ and € for calculations in your local currency.
How to Use
Enter Principal
Set your starting investment amount.
Set Interest Rate
Enter the annual interest rate.
Choose Period
Select how many years you want to invest.
Compare Results
See how daily compounding beats other frequencies.
The Formula
A = P × (1 + r/n)^(n×t)Frequently Asked Questions
What is daily compound interest?
Daily compound interest means your interest is calculated and added to your balance every day (365 times per year). Each day's interest calculation includes all previously earned interest.
How much difference does daily vs monthly compounding make?
For $10,000 at 8% over 10 years: Daily gives $22,255 vs Monthly $22,196 — a difference of $59. The difference grows significantly with larger amounts and longer periods.
Which banks offer daily compounding?
Most high-yield savings accounts and some CDs compound daily. Online banks like Marcus (Goldman Sachs), Ally Bank, and Discover typically compound daily.
Is daily compounding always better?
Yes, more frequent compounding always gives you more money (at the same APR). Daily > Monthly > Quarterly > Yearly. However, the difference is small for low rates or short periods.
What is the Rule of 72?
Divide 72 by your interest rate to estimate how many years it takes to double your money. At 8%, your money doubles in about 9 years (72 ÷ 8 = 9).