How Many Weeks in a Month
Calculate how many weeks are in a month with our comprehensive guide. Most months have approximately 4.3 weeks, but the exact number varies from 4.0 weeks in February to 4.43 weeks in 31-day months.
Quick Answer
• Average month: 4.33 weeks
• 30-day months: 4.29 weeks
• 31-day months: 4.43 weeks
• February: 4.0 weeks (4.14 leap year)
• 30-day months: 4.29 weeks
• 31-day months: 4.43 weeks
• February: 4.0 weeks (4.14 leap year)
Weeks in Each Month - Complete Table
| Month | Days | Decimal Weeks | Exact Breakdown |
|---|---|---|---|
| January | 31 | 4.43 | 4 weeks 3 days |
| February | 28/29 | 4.00/4.14 | 4 weeks exactly / 4 weeks 1 day |
| March | 31 | 4.43 | 4 weeks 3 days |
| April | 30 | 4.29 | 4 weeks 2 days |
| May | 31 | 4.43 | 4 weeks 3 days |
| June | 30 | 4.29 | 4 weeks 2 days |
| July | 31 | 4.43 | 4 weeks 3 days |
| August | 31 | 4.43 | 4 weeks 3 days |
| September | 30 | 4.29 | 4 weeks 2 days |
| October | 31 | 4.43 | 4 weeks 3 days |
| November | 30 | 4.29 | 4 weeks 2 days |
| December | 31 | 4.43 | 4 weeks 3 days |
How to Calculate Weeks in a Month
Formula: Days ÷ 7
28 days: 28 ÷ 7 = 4.00 weeks exactly
29 days: 29 ÷ 7 = 4.14 weeks (4 weeks 1 day)
30 days: 30 ÷ 7 = 4.29 weeks (4 weeks 2 days)
31 days: 31 ÷ 7 = 4.43 weeks (4 weeks 3 days)
29 days: 29 ÷ 7 = 4.14 weeks (4 weeks 1 day)
30 days: 30 ÷ 7 = 4.29 weeks (4 weeks 2 days)
31 days: 31 ÷ 7 = 4.43 weeks (4 weeks 3 days)
Calendar Week Planning
Business Planning
Most months have 4 full weeks plus 2-3 extra days. Plan for 4-5 work weeks per month.
Project Management
Use 4.3 weeks as average for monthly project timelines and resource allocation.
Week Distribution by Month Type
4.43 Weeks (31 days)
Jan, Mar, May, Jul, Aug, Oct, Dec
4.29 Weeks (30 days)
Apr, Jun, Sep, Nov
4.0/4.14 Weeks
February (28/29 days)
Practical Applications
Common Use Cases:
- Payroll: Calculate weekly vs monthly salaries
- Budgeting: Convert weekly expenses to monthly
- Scheduling: Plan recurring weekly events
- Project Planning: Estimate monthly deliverables
- Fitness Goals: Track weekly progress monthly
Time Conversion Facts
Average Month:
4.33 weeks
4.33 weeks
Year Total:
52.14 weeks
52.14 weeks
Quarter Average:
13 weeks
13 weeks
Perfect Month:
February (4 weeks)
February (4 weeks)
Related Time Calculations
About Weeks in a Month Calculator
Understanding how many weeks are in a month is crucial for planning, budgeting, and scheduling. Since months don't align perfectly with weeks (7 days), most months contain 4 full weeks plus additional days.
Key Insights:
- Only February in non-leap years has exactly 4 weeks
- Most months have between 4.29 and 4.43 weeks
- The extra days create partial weeks at month boundaries
- Calendar weeks often span across two months
- Business planning typically uses 4.3 weeks per month