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Simple Interest Calculator

How much simple interest will I earn or pay?

Simple interest is worked out on the original amount only, at the same rate every year. Enter the amount, the rate and the period to see the interest and the total.

₹
% p.a.
years

Total amount

₹1,40,000

Interest₹40,000
Compare savings accounts

Indicative only. Your lender’s figures may differ. Nothing you enter here is sent anywhere or stored.

How It's Calculated

Interest = P × r × t ÷ 100

P is the amount, r the yearly rate in percent and t the years. Interest is worked out on the original amount only; the total is P plus the interest.

Worked Example

If you enter

  • Amount₹1,00,000
  • Interest rate8 % p.a.
  • Period5 years

You get

  • Total amount₹1,40,000
  • Interest₹40,000

These are the calculator's starting values. Change them above to see your own.

Accounts to Compare

Compare interest rates and charges before you open one.

Compare These 3 →See All 5 →
Zero Balance
Kotak 811 Digital Savings Account

Kotak Mahindra Bank

Interest rate
2.50%
Account type
Zero Balance
Minimum balance
Zero
Bank
Kotak Mahindra Bank
Read more
  • Zero-balance digital savings account opened online with Aadhaar or video KYC, paying 2.5% p.a., with a free virtual debit card.
IndusInd Online Savings Account

IndusInd Bank

Interest rate
2.50%
Account type
Regular
Minimum balance
-
Bank
IndusInd Bank
Read more
  • Savings account opened fully online. Interest 2.5% up to Rs 1 lakh, 3% from Rs 1 lakh to Rs 25 lakh, 4% from Rs 25 lakh to Rs 5 crore (from 1 Mar 2026). Zero balance if you choose a premium debit card or fund it as the chosen variant requires; otherwise an average monthly balance of Rs 20,000.
Equitas Regular Savings Account

Equitas Small Finance Bank

Interest rate
2.50%
Account type
Regular
Minimum balance
-
Bank
Equitas Small Finance Bank
Read more
  • Savings account from Equitas Small Finance Bank with high slab rates: 2.5% up to Rs 1 lakh, 7% from Rs 1 lakh to Rs 5 lakh, 6% from Rs 5 lakh to Rs 10 lakh, 6.5% from Rs 10 lakh to Rs 25 crore (from 5 Aug 2026).
DBS digibank Savings Account

DBS Bank India

Interest rate
2.50%
Account type
Regular
Minimum balance
-
Bank
DBS Bank India
Read more
  • Digital savings account from DBS Bank India, opened in the digibank app. Interest 2.5% up to Rs 2 lakh and 5% from Rs 2 lakh to Rs 50 lakh (4% above), from 24 Oct 2025, calculated daily and paid quarterly.

Common Questions

What is the simple interest formula?

Interest = principal × rate × time ÷ 100, with the rate a year and time in years. The total is the principal plus the interest.

Where is simple interest used in India?

Some short loans, gold loans and informal lending. Bank deposits and most loans use compound interest or a reducing balance instead.

Is simple interest better for a borrower?

At the same rate, yes: you pay interest only on the amount you borrowed. Compare the total you pay, not only the rate.

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