Months To Weeks Conversion (mo To Wk) - Inch Calculator

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• Months to Weeks Converter
• How to Convert Months to Weeks
• How Many Weeks in a Month?
• What Is a Month?
• What Is a Week?
• Month to Week Conversion Table

Person Icon By Joe Sexton

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Months to Weeks Converter. Inch Calculator. Retrieved December 24, 2025, from https://www.inchcalculator.com/convert/month-to-week/

How to Convert Months to Weeks

To convert months to weeks, multiply the time in months by the conversion factor.

On average, one month is equal to 4.348125 weeks, so you can use this formula to convert:

weeks = months × 4.348125

The time in weeks is equal to the number of months multiplied by 4.348125.

For example, here's how to convert 5 months to weeks using the formula above.

weeks = (5 mo × 4.348125) = 21.740625 wks

It's important to keep in mind that each month has a different number of days and thus, a different number of weeks. That means that to precisely convert months to weeks, you'll need to know which months you're working with.

How Many Weeks in a Month?

While there are an average of 4.348125 weeks in a month, each month has a slightly different number of weeks because there are a different number of days in each.

The table below shows how many weeks are in each month of the year.

Table showing the number of days and weeks in each month of the year.

Month	Number of Days	Number of Weeks
January	31 days	4 weeks + 3 days
February	28 days (29 in leap years)	4 weeks (+1 day in leap years)
March	31 days	4 weeks + 3 days
April	30 days	4 weeks + 2 days
May	31 days	4 weeks + 3 days
June	30 days	4 weeks + 2 days
July	31 days	4 weeks + 3 days
August	31 days	4 weeks + 3 days
September	30 days	4 weeks + 2 days
October	31 days	4 weeks + 3 days
November	30 days	4 weeks + 2 days
December	31 days	4 weeks + 3 days

Months and weeks are both units used to measure time. Keep reading to learn more about each unit of measure.

What 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.

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.

Learn more about months.

What Is a Week?

One week is a time period of seven days. The following days are a part of a week: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday.

Weeks can be abbreviated as wk (plural wks); for example, 1 week can be written as 1 wk, and 2 weeks can be written as 2 wks.

Learn more about weeks.

Month to Week Conversion Table

Table showing various month measurements converted to weeks.

Months	Weeks
1 mo	4.3481 wk
2 mo	8.6963 wk
3 mo	13.04 wk
4 mo	17.39 wk
5 mo	21.74 wk
6 mo	26.09 wk
7 mo	30.44 wk
8 mo	34.79 wk
9 mo	39.13 wk
10 mo	43.48 wk
11 mo	47.83 wk
12 mo	52.18 wk
13 mo	56.53 wk
14 mo	60.87 wk
15 mo	65.22 wk
16 mo	69.57 wk
17 mo	73.92 wk
18 mo	78.27 wk
19 mo	82.61 wk
20 mo	86.96 wk
21 mo	91.31 wk
22 mo	95.66 wk
23 mo	100.01 wk
24 mo	104.36 wk
25 mo	108.7 wk
26 mo	113.05 wk
27 mo	117.4 wk
28 mo	121.75 wk
29 mo	126.1 wk
30 mo	130.44 wk
31 mo	134.79 wk
32 mo	139.14 wk
33 mo	143.49 wk
34 mo	147.84 wk
35 mo	152.18 wk
36 mo	156.53 wk
37 mo	160.88 wk
38 mo	165.23 wk
39 mo	169.58 wk
40 mo	173.93 wk

More Month & Week Conversions

Calendar IconConvert from Months

• months to centuriesChevron Right Icon
• months to decadesChevron Right Icon
• months to yearsChevron Right Icon
• months to daysChevron Right Icon
• months to hoursChevron Right Icon
• months to minutesChevron Right Icon
• months to secondsChevron Right Icon
• months to millisecondsChevron Right Icon
• months to microsecondsChevron Right Icon
• months to nanosecondsChevron Right Icon

Calendar IconConvert to Weeks

• centuries to weeksChevron Right Icon
• decades to weeksChevron Right Icon
• years to weeksChevron Right Icon
• days to weeksChevron Right Icon
• hours to weeksChevron Right Icon
• minutes to weeksChevron Right Icon
• seconds to weeksChevron Right Icon
• milliseconds to weeksChevron Right Icon
• microseconds to weeksChevron Right Icon
• nanoseconds to weeksChevron Right Icon