Compound Interest Calculator Santiago

Compound Interest Calculator for Santiago

Savings accounts and deposits in Santiago are priced off the Central Bank of Chile policy rate, which stood at 4.5% at the end of September 2026. National consumer price inflation was 4.08% in September 2026, so a saver earning exactly the policy rate would have a real return of 0.41% a year before tax.

Facts that change the answer

• Central Bank of Chile policy rate: 4.5% (September 2026, BIS series)
• Annual CPI inflation: 4.08% (September 2026)
• Real return at the policy rate: 0.41% per year (computed as (1 + 4.5%) / (1 + 4.08%) minus 1)
• Policy rate at each December: 2016 3.5%, 2017 2.5%, 2018 2.75%, 2019 1.75%, 2020 0.5%, 2021 4%, 2022 11.25%, 2023 8.25%, 2024 5%, 2025 4.5%
• Policy rate moves since January 2020 (month-end data): March 2020 1.75% to 1%; April 2020 1% to 0.5%; July 2021 0.5% to 0.75%; September 2021 0.75% to 1.5%; October 2021 1.5% to 2.75%; December 2021 2.75% to 4%; January 2022 4% to 5.5%; March 2022 5.5% to 7%; May 2022 7% to 8.25%; June 2022 8.25% to 9%; July 2022 9% to 9.75%; September 2022 9.75% to 10.75%; October 2022 10.75% to 11.25%; July 2023 11.25% to 10.25%; September 2023 10.25% to 9.5%; October 2023 9.5% to 9%; December 2023 9% to 8.25%; February 2024 8.25% to 7.25%; April 2024 7.25% to 6.5%; May 2024 6.5% to 6%; June 2024 6% to 5.75%; September 2024 5.75% to 5.5%; October 2024 5.5% to 5.25%; December 2024 5.25% to 5%; July 2025 5% to 4.75%; December 2025 4.75% to 4.5%
• In 5 of the last 10 years the December policy rate was above that year's average inflation

Worked example for Santiago

Start with CLP 5,000,000, add CLP 50,000 a month and use 4.5% compounded monthly. After 10 years you would have CLP 15,394,868 from CLP 11,000,000 of deposits; after 20 years CLP 31,683,550 from CLP 17,000,000. These amounts in Chilean peso are only examples; real deposit rates offered by banks in Santiago 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 4.08% a year, CLP 15,394,868 in ten years has the buying power of about CLP 10,323,203 now. Recent history for Santiago's currency: 2020: 0.5% rate vs 3.0% inflation, 2021: 4% rate vs 4.5% inflation, 2022: 11.25% rate vs 11.6% inflation, 2023: 8.25% rate vs 7.6% inflation, 2024: 5% rate vs 4.3% inflation, 2025: 4.5% rate vs 4.2% inflation.

If you hold the money in a fixed deposit, the rate you lock in matters more than the compounding frequency. On CLP 5,000,000 over 10 years at 4.5%, switching from yearly to monthly compounding adds only CLP 70,117, while a rate 1 point higher adds CLP 820,418.

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.