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Compound interest on 100,000 at 10% for 10 years

Investing 100,000 at 10% per year, compounded monthly, grows to 270,704.15 after 10 years — 170,704.15 in interest.

Grows to 270,704.15

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Full breakdown

Future value (monthly compounding)270,704.15
Interest earned170,704.15
Growth multiple2.71×
Same with simple interest200,000
Extra from compounding70,704.15

Step-by-step working

  1. Monthly rate = 10% ÷ 12 = 0.8333%
  2. Periods = 10 × 12 = 120
  3. A = 100000 × (1 + 0.008333)^120 = 270,704.15

A = P × (1 + r/n)^(n·t), n = 12

Try your own numbers with the Compound Interest Calculator.

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