Days to Months Converter Calculator

Convert Days to Months, Months to Days, Work Days to Calendar Months or Calendar Months to Work Days.

Home Time

Day - Month Converter

Enter day or month and find the equivalent. You can also Select Work Days and enter average work day hours per month

Days

Work Days / Business Days

Months

Days

Formula for days to months converter

How to convert days to months?

To find out how many months in days, divide the number of days by 30.417

months = no of days / 30.417

For example, 12 days in month is equal to 12 days / 30.417 = 0.395 months

How to convert months to days?

To convert months to days, multiply no of months by 30.417

days = 30.417 * no of months

For example, 3 months is equal to 3 * 30.417 = 91.25 days

How to convert months to work days?

To convert months to work days, multiply number of work months by 20

calendar days = work months * 20

For example, to convert 20 work months to days, multiply 20 by 20 which is equal to 400 days

How to convert work days to months?

Considering 20 days as a work days in a month, to convert work days to calendar months, you divide no of work days by 20

calendar months = no of work days / 20

For example, to convert 30 work days to calendar months, it will be 30 days / 20 = 1.5 months

Average Work Days in the Year 2025

Average Work Days in 2025

For 5 day work week :

For 6 day work week :

Month	Work Days (5 day work week)	Work Days (6 day work week)
January	23	27
February	20	24
March	21	26
April	22	26
May	22	27
June	21	25
July	23	27
August	21	26
September	22	26
October	23	27
November	20	25
December	23	27

Average Work Days in the Year 2026

Average Work Days in 2026

For 5 day work week :

For 6 day work week :

Month	Work Days (5 day work week)	Work Days (6 day work week)
January	22	27
February	20	24
March	22	26
April	22	26
May	21	26
June	22	26
July	23	27
August	21	26
September	22	26
October	22	26
November	21	25
December	23	27

Days to Months Conversion Table

Days	Months	Month and Days
5 days	0.2 months	0 months 5 days
7 days	0.2 months	0 months 7 days
10 days	0.3 months	0 months 10 days
12 days	0.4 months	0 months 12 days
14 days	0.5 months	0 months 14 days
16 days	0.5 months	0 months 16 days
20 days	0.7 months	0 months 20 days
21 days	0.7 months	0 months 21 days
22 days	0.7 months	0 months 22 days
23 days	0.8 months	0 months 23 days
24 days	0.8 months	0 months 24 days
25 days	0.8 months	0 months 25 days
26 days	0.9 months	0 months 26 days
27 days	0.9 months	0 months 27 days
28 days	0.9 months	0 months 28 days
29 days	1 months	0 months 29 days
30 days	1 months	0 months 30 days
31 days	1 months	1 months 0.6 days
42 days	1.4 months	1 months 11.6 days
60 days	2 months	1 months 29.6 days
75 days	2.5 months	2 months 14.2 days
76 days	2.5 months	2 months 76 days
100 days	3.3 months	2 months 15.2 days
180 days	5.9 months	5 months 27.9 days
240 days	7.9 months	7 months 27.1 days
300 days	9.9 months	9 months 26.2 days
365 days	12 months	12 months 0 days

Months to Days and Work Days Conversion Table

Months	Calendar Days	Work days / Business Days
0.5	15.21	10
1	30.42	20
1.5	45.63	30
2	60.83	40
2.5	76.04	50
3	91.25	60
4	121.67	80
5	152.08	100
6	182.5	120
7	212.92	140
8	243.33	160
9	273.75	180
10	304.17	200
11	334.58	220
12	365	240
13	395.42	260
14	425.83	280
15	456.25	300
16	486.67	320
17	517.08	340
18	547.5	360
19	577.92	380
20	608.33	400
21	638.75	420
25	760.42	500
30	912.5	600
40	1216.67	800
50	1520.83	1000
60	1825	1200
100	3041.67	2000
200	6083.33	4000
300	9125	6000
500	15208.33	10000

Work Days to Calendar Months Conversion Table

Work Days / Business Days	Calendar Months
5	0.25 months
10	0.5 months
15	0.75 months
20	1 months
22	1.1 months
25	1.25 months
30	1.5 months
35	1.75 months
40	2 months
45	2.25 months
50	2.5 months
75	3.75 months
90	4.5 months
100	5 months
120	6 months
150	7.5 months
200	10 months
250	12.5 months
300	15 months
500	25 months
1000	50 months

FAQ on Business Days, Work Days and Calendar Months

What is the difference between Calendar Days and Work Days?

Calendar days refers to all the 7 days of the week from Mon to Sun.
Work Days mostly refers to the working days of the week which is normally Mon to Fri.
There can also be a 4 day work week (Mon to Thurs) or a 6 day work week (Mon to Sat)
So Calendar Days are 7 days in a week, Work Days is 5 days in a week and 20 to 22 days in a month.
This translates to 365.25 days in a year for Calendar Days and between 240 days to 264 days for Work days.

Is Business Day and WorkDay same?

They are not identical but in the context of conversion between Business Day to Calendar Day or WorkDay to Calendar day, they are on par.
A business day is with respect to a business / company operating days. It is typically Monday to Friday excluding weekends and public holidays.
A work day is with respect to an individual and it represents the days of work.
It can be a 4 day, 5 day or 6 day work week.
Both Business Days and Work Days are usually less than calendar days and average 20-22 days a month.

Why do we need Business Days or Working Days to Month Conversion?

It is mostly used in estimation, work scheduling , planning and delivery
For eg, if a project or an activity is estimated to take 30 business days, it translates to 45 calendar days or 1.5 months (considering 20 working days per month on an average).