Continuous Compound Interest Calculator
Model continuous compounding at a fixed annual rate.
Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
Example Calculation
- Principal: 1000 $
- Annual rate: 5 %
- Years: 10
$1,000 continuously compounded at 5% for 10 years grows to approximately $1,648.72.
Frequently asked questions
How do I use this calculator?
Enter principal, annual rate, years. The result updates automatically. Use Reset to restore the example values.
What method does it use?
A = P × exp(r × t). Follow the units and definitions shown with the inputs to apply this relationship consistently.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.