Best Answer

1 year = 12 months

2 years = 24 months

3 years = 36 months

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10 years = 120 months

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20 years = 240 months

21 years = 252 months

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Q: How many months is 21 years?

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12 months/year x 21 years = 252 months

12 months = 1 year 21 months = 21/12 years = 1.75 years = 1year 9months

1.75 years

21 days and no hours

21

Related questions

12 months/year x 21 years = 252 months

12 months = 1 year 21 months = 21/12 years = 1.75 years = 1year 9months

1.75 years

21 days and no hours

It's 1.75 years.

21 months that 2 years

1.75 years = 12 + 9 = 21 months

21 years and 9 months to be exact

1 and 3/4 years

21 months that 2 years

21