Months to Days Converter

Enter the time in months below to get the value converted to days.

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Result in Days:

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1 mo = 30.436875 d

Do you want to convert days to months?

How to Convert Months to Days

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

On average, one month is equal to 30.436875 days, so you can use this formula to convert:

days = months × 30.436875

The time in days is equal to the number of months multiplied by 30.436875.

For example, here's how to convert 3 months to days using the formula above.
days = (5 mo × 30.436875) = 152.184375 days

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

How Many Days in a Month?

While there are an average of 30.436875 days in a month, each month has a different number of days.

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

Table showing the number of days in each month of the year.
MonthNumber of Days
January31 days
February28 days (29 on leap years)
March31 days
April30 days
May31 days
June30 days
July31 days
August31 days
September30 days
October31 days
November30 days
December31 days

Months and days 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 Day?

One day is the time it takes for the Earth to complete a single 360-degree rotation about its axis. There are 24 hours in a day.

The day is an SI accepted unit for time for use with the metric system. Days can be abbreviated as d; for example, 1 day can be written as 1 d.

Learn more about days.

Month to Day Conversion Table

Table showing various month measurements converted to days.
Months Days
1 mo 30.44 d
2 mo 60.87 d
3 mo 91.31 d
4 mo 121.75 d
5 mo 152.18 d
6 mo 182.62 d
7 mo 213.06 d
8 mo 243.5 d
9 mo 273.93 d
10 mo 304.37 d
11 mo 334.81 d
12 mo 365.24 d
13 mo 395.68 d
14 mo 426.12 d
15 mo 456.55 d
16 mo 486.99 d
17 mo 517.43 d
18 mo 547.86 d
19 mo 578.3 d
20 mo 608.74 d
21 mo 639.17 d
22 mo 669.61 d
23 mo 700.05 d
24 mo 730.49 d
25 mo 760.92 d
26 mo 791.36 d
27 mo 821.8 d
28 mo 852.23 d
29 mo 882.67 d
30 mo 913.11 d
31 mo 943.54 d
32 mo 973.98 d
33 mo 1,004 d
34 mo 1,035 d
35 mo 1,065 d
36 mo 1,096 d
37 mo 1,126 d
38 mo 1,157 d
39 mo 1,187 d
40 mo 1,217 d

More Month & Day Conversions