Percentage Calculator
Find a percentage of a number or a percentage change.
Finance & calculatorsFinance & calculators tools
Compound Interest Calculator
Calculate compound growth at a selected compounding frequency.
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How to use compound interest calculator
- Enter Initial principal, Nominal annual rate, and Years.
- Choose annual, quarterly, monthly, or daily Compounds per year.
- Choose Calculate and review the balance and interest without added deposits.
Work through an example
Model a single starting balance with annual, quarterly, monthly, or daily compounding and no added deposits.
Compare compound growth at a chosen nominal rate and frequency →Formats, privacy, and practical limits
Illustrative calculations based on the values you enter. Figures exclude fees, taxes, and rate changes unless you include them. Returns are assumptions, not guarantees.
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Frequently asked questions
Are additional contributions included?
No. This calculation grows one starting balance without added contributions or withdrawals.
What does daily compounding mean here?
It uses 365 compounding periods per year in the formula, without an actual dated schedule or leap-year day-count calculation.
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