Months to Weeks Converter
Convert time between months and weeks with precise bidirectional conversion
Time Conversion
Calendar months (average 30.44 days)
1 week = 7 days
Conversion Result
Conversion formula:
• Months to Weeks: weeks = months × 4.34821
• Weeks to Months: months = weeks ÷ 4.34821
Note: Based on average calendar month of 30.44 days (365.25 ÷ 12 months)
Common Conversions
| Months | Weeks | Common Use |
|---|---|---|
| 1 month | ≈ 4.35 weeks | Average month |
| 2 months | ≈ 8.70 weeks | Two months |
| 3 months | ≈ 13.04 weeks | One quarter |
| 6 months | ≈ 26.09 weeks | Half year |
| 9 months | ≈ 39.13 weeks | Pregnancy duration |
| 12 months | ≈ 52.18 weeks | One year |
Time Unit Reference
Conversion Tips
1 month ≈ 4.348 weeks (based on 30.44 days)
Individual months vary: 28-31 days
Useful for pregnancy tracking (40 weeks)
Perfect for project planning and scheduling
Understanding Months to Weeks Conversion
Why the Conversion Isn't Exact
Unlike converting between hours and minutes or feet and inches, converting months to weeks isn't as straightforward. This is because months have varying numbers of days (28, 29, 30, or 31), while a week consistently has 7 days.
Average Month Calculation
To standardize the conversion, we use an average calendar month. This is calculated by taking the total days in a year (365.25, accounting for leap years) and dividing by 12 months, which gives us 30.4375 days per month, or approximately 4.348 weeks per month.
Conversion Formula
Months to Weeks:
weeks = months × 4.34821
Weeks to Months:
months = weeks ÷ 4.34821
Calculation Breakdown
How we get 4.348 weeks per month:
- • 1 year = 365.25 days (accounting for leap years)
- • 1 year = 12 months
- • Average month = 365.25 ÷ 12 = 30.4375 days
- • 1 week = 7 days
- • 1 month = 30.4375 ÷ 7 ≈ 4.348 weeks
Practical Applications
Pregnancy Tracking
Pregnancy is commonly measured as 40 weeks or approximately 9.2 months. This converter helps expectant parents translate between medical weeks and calendar months.
Project Planning
Convert project timelines between months and weeks for better sprint planning, milestone tracking, and resource allocation in agile project management.
Lease Agreements
Understand rental periods by converting between monthly lease terms and weekly rental rates, useful for short-term accommodations and vacation rentals.
Real-World Examples
Example 1: Pregnancy (13 weeks)
13 weeks = 13 ÷ 4.348 ≈ 2.99 months (approximately 3 months or end of first trimester)
This equals exactly 91 days.
Example 2: Quarterly Planning (3 months)
3 months = 3 × 4.348 ≈ 13.04 weeks
Perfect for quarterly business planning cycles.
Example 3: Six-Week Vacation
6 weeks = 6 ÷ 4.348 ≈ 1.38 months (about 1 month and 11 days)
Useful for extended travel planning.
Important Notes
- ⚠️This converter uses an average month of 30.44 days. Actual months vary from 28 to 31 days.
- ⚠️For precise date calculations, consider using a calendar or date calculator that accounts for specific months.
- ⚠️The calculation accounts for leap years by using 365.25 days per year.
- ⚠️This converter is perfect for planning, estimation, and general time conversions.