Converting days to months is less precise than other time conversions because months do not all have the same number of days. The standard convention uses 30.44 days per month (365.25 ÷ 12), which gives a reliable approximation.
An average month is 30.44 days (accounting for leap years). For a simple approximation, 30 days per month is often used. To convert days to months, divide the number of days by 30.44 (or 30 for a quick approximation).
📐 Formula
Months = Days ÷ 30.44 (precise approximation)
Months ≈ Days ÷ 30 (simple approximation)
📊 Reference table
| Days | Months (÷30.44) | Months (÷30) |
|---|---|---|
| 30 | 0.99 | 1 |
| 60 | 1.97 | 2 |
| 90 | 2.96 | 3 |
| 120 | 3.94 | 4 |
| 180 | 5.91 | 6 |
| 270 | 8.87 | 9 |
| 365 | 11.99 | 12.17 |
| 730 | 23.98 | 24.33 |
💡 Practical examples
Example 1: 90 days
90 ÷ 30.44 ≈ 2.96 months, approximately 3 months. Standard probationary period in a company.
Example 2: 180 days
180 ÷ 30.44 ≈ 5.91 months, approximately 6 months. Duration of a university semester or six-month subscription.
Example 3: 365 days
365 ÷ 30.44 ≈ 12 months. A complete year, which confirms the consistency of the formula.