# Month Conversion Calculator

Enter a value in months below to convert to another unit of time.

## What Is a Month?

A month is a unit used to measure time.

Months can be abbreviated as mo (plural mos), and are also sometimes abbreviated as mth. For example, 1 month can be written as 1 mo or 1 mth, and 2 months can be written as 2 mos.

## How Much Is a Month?

One month is a unit of time equal to 1/12 of a year. The month is a unit of time used most commonly in relation to the calendar, and ranges in length from 28 to 31 days.

## How to Convert Months

To convert months to another unit of time, you need to multiply the value by a conversion factor. A conversion factor is a numerical value used to change the units of a measurement without changing the value.[1]

You can find the conversion factors for months in the conversion table below.

Then, multiply the time measurement by the conversion factor to find the equivalent value in the desired unit of measurement.

months × conversion factor = result

You can also use a calculator, such as one of the converters below, for the conversion.

## Month Conversion Table

Months and the equivalent time durations
months centuries decades years weeks days hours minutes seconds milliseconds microseconds nanoseconds
1 mo 0.000833 c 0.008333 0.083333 yr 4.348125 wk 30.436875 d 730.485 hr 43,829 min 2,629,746 s 2,629,746,000 ms 2,629,746,000,000 µs 2,629,700,000,000,000 ns
2 mo 0.001667 c 0.016667 0.166667 yr 8.69625 wk 60.87375 d 1,461 hr 87,658 min 5,259,492 s 5,259,492,000 ms 5,259,492,000,000 µs 5,259,500,000,000,000 ns
3 mo 0.0025 c 0.025 0.25 yr 13.044375 wk 91.310625 d 2,191 hr 131,487 min 7,889,238 s 7,889,238,000 ms 7,889,238,000,000 µs 7,889,200,000,000,000 ns
4 mo 0.003333 c 0.033333 0.333333 yr 17.3925 wk 121.7475 d 2,922 hr 175,316 min 10,518,984 s 10,518,984,000 ms 10,518,984,000,000 µs 10,519,000,000,000,000 ns
5 mo 0.004167 c 0.041667 0.416667 yr 21.740625 wk 152.184375 d 3,652 hr 219,146 min 13,148,730 s 13,148,730,000 ms 13,148,730,000,000 µs 13,149,000,000,000,000 ns
6 mo 0.005 c 0.05 0.5 yr 26.08875 wk 182.62125 d 4,383 hr 262,975 min 15,778,476 s 15,778,476,000 ms 15,778,476,000,000 µs 15,778,000,000,000,000 ns
7 mo 0.005833 c 0.058333 0.583333 yr 30.436875 wk 213.058125 d 5,113 hr 306,804 min 18,408,222 s 18,408,222,000 ms 18,408,222,000,000 µs 18,408,000,000,000,000 ns
8 mo 0.006667 c 0.066667 0.666667 yr 34.785 wk 243.495 d 5,844 hr 350,633 min 21,037,968 s 21,037,968,000 ms 21,037,968,000,000 µs 21,038,000,000,000,000 ns
9 mo 0.0075 c 0.075 0.75 yr 39.133125 wk 273.931875 d 6,574 hr 394,462 min 23,667,714 s 23,667,714,000 ms 23,667,714,000,000 µs 23,668,000,000,000,000 ns
10 mo 0.008333 c 0.083333 0.833333 yr 43.48125 wk 304.36875 d 7,305 hr 438,291 min 26,297,460 s 26,297,460,000 ms 26,297,460,000,000 µs 26,297,000,000,000,000 ns
11 mo 0.009167 c 0.091667 0.916667 yr 47.829375 wk 334.805625 d 8,035 hr 482,120 min 28,927,206 s 28,927,206,000 ms 28,927,206,000,000 µs 28,927,000,000,000,000 ns
12 mo 0.01 c 0.1 1 yr 52.1775 wk 365.2425 d 8,766 hr 525,949 min 31,556,952 s 31,556,952,000 ms 31,556,952,000,000 µs 31,557,000,000,000,000 ns
13 mo 0.010833 c 0.108333 1.083333 yr 56.525625 wk 395.679375 d 9,496 hr 569,778 min 34,186,698 s 34,186,698,000 ms 34,186,698,000,000 µs 34,187,000,000,000,000 ns
14 mo 0.011667 c 0.116667 1.166667 yr 60.87375 wk 426.11625 d 10,227 hr 613,607 min 36,816,444 s 36,816,444,000 ms 36,816,444,000,000 µs 36,816,000,000,000,000 ns
15 mo 0.0125 c 0.125 1.25 yr 65.221875 wk 456.553125 d 10,957 hr 657,437 min 39,446,190 s 39,446,190,000 ms 39,446,190,000,000 µs 39,446,000,000,000,000 ns
16 mo 0.013333 c 0.133333 1.333333 yr 69.57 wk 486.99 d 11,688 hr 701,266 min 42,075,936 s 42,075,936,000 ms 42,075,936,000,000 µs 42,076,000,000,000,000 ns
17 mo 0.014167 c 0.141667 1.416667 yr 73.918125 wk 517.426875 d 12,418 hr 745,095 min 44,705,682 s 44,705,682,000 ms 44,705,682,000,000 µs 44,706,000,000,000,000 ns
18 mo 0.015 c 0.15 1.5 yr 78.26625 wk 547.86375 d 13,149 hr 788,924 min 47,335,428 s 47,335,428,000 ms 47,335,428,000,000 µs 47,335,000,000,000,000 ns
19 mo 0.015833 c 0.158333 1.583333 yr 82.614375 wk 578.300625 d 13,879 hr 832,753 min 49,965,174 s 49,965,174,000 ms 49,965,174,000,000 µs 49,965,000,000,000,000 ns
20 mo 0.016667 c 0.166667 1.666667 yr 86.9625 wk 608.7375 d 14,610 hr 876,582 min 52,594,920 s 52,594,920,000 ms 52,594,920,000,000 µs 52,595,000,000,000,000 ns

## Month Conversion Calculators

You can also convert time using one of our month converters below.

## References

1. National Institute of Standards & Technology, Unit Conversion, https://www.nist.gov/pml/owm/metric-si/unit-conversion