Why compounding frequency matters
Interest can be credited on a schedule. The more often it compounds (while the nominal annual rate stays the same), the slightly faster the balance grows because you earn "interest on interest" sooner.
| Compounding | Periods / year | Notes |
|---|---|---|
| Annually | 1 | Interest once per year |
| Quarterly | 4 | Common for some savings products |
| Monthly | 12 | Typical for many accounts |
| Daily | 365 | Maximum effect for same nominal rate |
Demo growth curve
Area chart uses a lump-sum demo. Adjust the calculator to explore your own principal, rate, and horizon—the in-card chart reflects your inputs.
Frequently asked questions
Quick answers about this calculator. For legal or financial decisions, consult a professional.
What does compounding frequency change?
More frequent compounding (e.g. monthly vs annually) credits interest more often, so growth can be slightly higher for the same nominal annual rate.
Is this the same as APY?
APY reflects compounding in one number. This calculator uses a stated annual rate plus an explicit compounding frequency instead of a single APY input.
Are taxes or inflation included?
No. The chart and numbers are nominal—not adjusted for tax, fees, or inflation.
Can I rely on this for investing?
Only as a rough illustration. Real products have fees, variable returns, and risk. This is not investment advice.