Compound Interest Calculator Mumbai

Compound Interest Calculator for Mumbai

Savings accounts and deposits in Mumbai are priced off the Reserve Bank of India policy rate, which stood at 5.25% at the end of September 2026. National consumer price inflation was 5.54% in September 2026, so a saver earning exactly the policy rate would have a real return of -0.28% a year before tax.

Facts that change the answer

• Reserve Bank of India policy rate: 5.25% (September 2026, BIS series)
• Annual CPI inflation: 5.54% (September 2026)
• Real return at the policy rate: -0.28% per year (computed as (1 + 5.25%) / (1 + 5.54%) minus 1)
• Policy rate at each December: 2016 6.25%, 2017 6%, 2018 6.5%, 2019 5.15%, 2020 4%, 2021 4%, 2022 6.25%, 2023 6.5%, 2024 6.5%, 2025 5.25%
• Policy rate moves since January 2020 (month-end data): March 2020 5.15% to 4.4%; May 2020 4.4% to 4%; May 2022 4% to 4.4%; June 2022 4.4% to 4.9%; August 2022 4.9% to 5.4%; September 2022 5.4% to 5.9%; December 2022 5.9% to 6.25%; February 2023 6.25% to 6.5%; February 2025 6.5% to 6.25%; April 2025 6.25% to 6%; June 2025 6% to 5.5%; December 2025 5.5% to 5.25%
• In 7 of the last 10 years the December policy rate was above that year's average inflation

Worked example for Mumbai

Start with INR 500,000, add INR 5,000 a month and use 5.25% compounded monthly. After 10 years you would have INR 1,631,147 from INR 1,100,000 of deposits; after 20 years INR 3,541,116 from INR 1,700,000. These amounts in Indian rupee are only examples; real deposit rates offered by banks in Mumbai are usually below or above the policy rate depending on the term and the bank.

To see what that balance is worth in today's money, take inflation into account: at 5.54% a year, INR 1,631,147 in ten years has the buying power of about INR 951,067 now. Recent history for Mumbai's currency: 2020: 4% rate vs 6.6% inflation, 2021: 4% rate vs 5.1% inflation, 2022: 6.25% rate vs 6.7% inflation, 2023: 6.5% rate vs 5.7% inflation, 2024: 6.5% rate vs 5.0% inflation, 2025: 5.25% rate vs 2.2% inflation.

If you hold the money in a fixed deposit, the rate you lock in matters more than the compounding frequency. On INR 500,000 over 10 years at 5.25%, switching from yearly to monthly compounding adds only INR 10,214, while a rate 1 point higher adds INR 88,347.

Sources: BIS central bank policy rates · BIS consumer price statistics. Checked 5 November 2026. For how the maths works, see the Compound Interest Calculator guide.