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Finance Calculators

Simple Interest Maturity Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
%
years
Verified formula Private

Maturity amount

₹1,20,000.00

Interest earned
₹20,000.00

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Simple Interest Maturity Calculator

The Simple Interest Maturity Calculator works out your maturity amount, along with 1 related figure in an instant. Enter principal, annual interest rate and time and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the principal.
  2. Enter the annual interest rate.
  3. Enter the time.
  4. Read off your maturity amount, together with interest earned — the calculator updates automatically, with no button to press.

Formula

The Simple Interest Maturity Calculator uses the formula:

Maturity amount = Principal × (1 + Annual interest rate ÷ 100 × Time)

Worked example

For example, with principal of 100,000, annual interest rate of 1% and time of 2 years, the maturity amount is ₹1,20,000.00.

Inputs used
Principal 100,000
Annual interest rate 1%
Time 2 years
Results
Maturity amount ₹1,20,000.00
Interest earned ₹20,000.00

Results are estimates for educational use, not professional advice.

Key terms explained

Simple interest
Interest charged only on the original principal, calculated as principal × rate × time ÷ 100.
Interest rate
The percentage charged on a loan or paid on savings, usually quoted per year (per annum).
Principal
The original sum of money borrowed or invested, before any interest is added.
Maturity
The point at which an investment or deposit ends and its full value becomes payable.

Frequently asked questions

Maturity = principal × (1 + rate × time). 100,000 at 10% for 2 years matures to 120,000.

Interest paid only on the principal, not on accumulated interest, so it grows linearly.

Compound interest earns on prior interest too, so it grows faster than simple interest over time.

Use principal × rate × time. Here it is 20,000.

Enter the principal. Enter the annual interest rate. Enter the time. Read off your maturity amount, together with interest earned — the calculator updates automatically, with no button to press.

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