Interest Calculator
Interest Calculator
Results
Simple Interest
Compound Interest
Compound interest earns $262.82 more than simple interest
Formulas Used:
Simple Interest: I = P × R × T
Compound Interest: A = P(1 + r/n)^(nt)
Where P = Principal, R = Rate, T = Time, n = compounding frequency
Overview
Comprehensive interest calculator supporting both simple and compound interest calculations with multiple compounding frequencies. Calculate interest earned on savings, loans, or investments with options for annual, semiannual, quarterly, monthly, weekly, or daily compounding. Features detailed results showing interest earned, total amount, and the difference between simple and compound interest.
About
Interest Calculator
Professional interest calculator for calculating both simple and compound interest with various compounding frequencies. Perfect for comparing investment options, understanding loan costs, or planning savings growth.
Features:
- Simple and compound interest calculations
- Multiple compounding frequencies (daily to annually)
- Side-by-side comparison of simple vs compound interest
- Detailed breakdown of interest earnings
- Copy results to clipboard
- Reset functionality
FAQ
What's the difference between simple and compound interest?
Simple interest is calculated only on the principal amount, while compound interest is calculated on the principal plus accumulated interest. Compound interest grows faster over time.
How often should interest be compounded?
More frequent compounding (daily vs annually) results in higher returns. The difference is small for short terms but significant for long-term investments.
What formula do you use for compound interest?
A = P(1 + r/n)^(nt), where A is the final amount, P is principal, r is annual rate, n is compounding frequency, and t is time in years.
Can I calculate loan interest with this calculator?
Yes. Enter the loan amount as principal and the interest rate. The calculator will show total interest paid over the loan term.
How accurate are the calculations?
Calculations are mathematically precise to the cent. Results are rounded to two decimal places for readability, but internal calculations maintain full precision.