Convert 1 Year to Months

How long is 1 year? What is 1 year in months? 1 y to mo conversion.
Amount
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1 Year =
12 Months
exact result
Decimal places
Result in Plain English
1 year is equal to exactly 12 months.
In Scientific Notation
1 year
= 1 x 100 years
= 1.2 x 101 months
Years
In the Gregorian calendar, a year has on average 365.2425 days. It is based on the amount of time it takes for the Earth to rotate the sun.
Common abbreviations: y, yr
Months
A month is 1/12th of a year. In the Gregorian calendar, an average month has exactly 30.436875 days. It was originally based on the time it takes for the moon to rotate the Earth.
Common abbreviations: mo, mth
Years to Months Conversions
results may be rounded
y mo
1.00 12
1.01 12.12
1.02 12.24
1.03 12.36
1.04 12.48
1.05 12.6
1.06 12.72
1.07 12.84
1.08 12.96
1.09 13.08
1.10 13.2
1.11 13.32
1.12 13.44
1.13 13.56
1.14 13.68
1.15 13.8
1.16 13.92
1.17 14.04
1.18 14.16
1.19 14.28
1.20 14.4
1.21 14.52
1.22 14.64
1.23 14.76
1.24 14.88
1.25 15
1.26 15.12
1.27 15.24
1.28 15.36
1.29 15.48
1.30 15.6
1.31 15.72
1.32 15.84
1.33 15.96
y mo
1.34 16.08
1.35 16.2
1.36 16.32
1.37 16.44
1.38 16.56
1.39 16.68
1.40 16.8
1.41 16.92
1.42 17.04
1.43 17.16
1.44 17.28
1.45 17.4
1.46 17.52
1.47 17.64
1.48 17.76
1.49 17.88
1.50 18
1.51 18.12
1.52 18.24
1.53 18.36
1.54 18.48
1.55 18.6
1.56 18.72
1.57 18.84
1.58 18.96
1.59 19.08
1.60 19.2
1.61 19.32
1.62 19.44
1.63 19.56
1.64 19.68
1.65 19.8
1.66 19.92
1.67 20.04
y mo
1.68 20.16
1.69 20.28
1.70 20.4
1.71 20.52
1.72 20.64
1.73 20.76
1.74 20.88
1.75 21
1.76 21.12
1.77 21.24
1.78 21.36
1.79 21.48
1.80 21.6
1.81 21.72
1.82 21.84
1.83 21.96
1.84 22.08
1.85 22.2
1.86 22.32
1.87 22.44
1.88 22.56
1.89 22.68
1.90 22.8
1.91 22.92
1.92 23.04
1.93 23.16
1.94 23.28
1.95 23.4
1.96 23.52
1.97 23.64
1.98 23.76
1.99 23.88
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