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Interest Calculator
Calculate Simple or Compound Interest instantly for loans, FD, savings and investments.
About This Interest Calculator
This calculator is designed for educational and estimation purposes only. Actual interest may vary based on bank policies, compounding rules, and tenure.
- 📅 Last Updated: September 2026
- 📊 Calculation Method: Standard RBI-approved formulas
- 🧮 Accuracy: Up to 99.9% for standard inputs
Developed and maintained by EasyTP Finance Tools Team, focused on transparent, AdSense-safe financial calculators for Indian users.
How Interest Is Calculated
Simple Interest Formula
Simple Interest is calculated using:
SI = (P × R × T)
Compound Interest Formula
Compound Interest is calculated using:
A = P (1 + R / N)NT
Where P is principal, R is annual interest rate, T is time in years, and N is compounding frequency.