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Compound interest on 1,000 at 10% for 5 years

Investing 1,000 at 10% per year, compounded monthly, grows to 1,645.31 after 5 years — 645.31 in interest.

Grows to 1,645.31

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Full breakdown

Future value (monthly compounding)1,645.31
Interest earned645.31
Growth multiple1.65×
Same with simple interest1,500
Extra from compounding145.31

Step-by-step working

  1. Monthly rate = 10% ÷ 12 = 0.8333%
  2. Periods = 5 × 12 = 60
  3. A = 1000 × (1 + 0.008333)^60 = 1,645.31

A = P × (1 + r/n)^(n·t), n = 12

Try your own numbers with the Compound Interest Calculator.

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