How to convert months to days
Months vary from 28 to 31 days, so we use the average month length of 30.44 days (365.25 ÷ 12). To convert months to days, multiply by 30.44. For example, 6 months × 30.44 ≈ 182.64 days, close to half a year.
Real months run from 28 days in February (29 in a leap year) to 31 days in seven months of the year, so no single month is actually 30.44 days long. The average is the right tool for planning horizons such as loan terms, subscriptions and project schedules, and the wrong tool for a specific date range.
The same numbers feed straight into the days between dates calculator.
How to use this calculator
Enter a number of months and the approximate days appear instantly. For exact whole years use the years to days calculator, or convert weeks with the weeks to days calculator.
Common results at a glance: 1 month is 30.44 days, 3 months is 91.32 days, 9 months is 273.96 days and 18 months is 547.92 days. Decimal months work as well — 1.5 months is 45.66 days.
Why 30.44 days
A year averages 365.25 days across the leap cycle. Dividing by 12 months gives 30.44 days per month, a more accurate figure than rounding to 30. For an exact count between two dates, use a calendar-aware date difference instead.
When a contract or deadline hangs on the exact day, count the calendar instead of the average. Stretches that include June, July and August run long because those three months alone total 92 days, while any stretch containing February runs short.
Once that is settled, the days to hours calculator takes care of the next part.
Frequently asked questions
- How many days are in 6 months?
- About 182.64 days, using the average month of 30.44 days (6 × 30.44).
- How do I convert months to days?
- Multiply the number of months by 30.44, the average number of days in a month.
- Why use 30.44 instead of 30?
- 30.44 is 365.25 days divided by 12 months, which accounts for longer months and leap years more accurately.
- How many days are in 12 months?
- Twelve months is about 365.28 days, essentially one year (12 × 30.44).
- Is this the same as counting days on a calendar?
- No — it returns an average, not a calendar-exact count. Six months from 1 January is 181 days, but six months from 1 July is 184 days, because month lengths differ. Use a date-difference calculator when the precise start date matters.