Weeks ↔ Months Converter
Convert between weeks and months instantly. Useful for pregnancy tracking, project planning, and more.
🤰 Pregnancy Reference
📅 Weeks ↔ Months Conversion Details
Weeks to Months Formula
Average month length is 4.34524 weeks (30.4368 days ÷ 7).
Months to Weeks Formula
Multiply months by 4.34524 to get weeks.
Bidirectional Conversion
This converter works both ways simultaneously:
- Type in weeks → months updates automatically
- Type in months → weeks updates automatically
- No buttons to click - works as you type
Common Uses
- Pregnancy tracking
- Project timelines
- Event planning
- Financial planning
🤰 Pregnancy Week to Month Reference
| Trimester | Weeks | Months | Approximate |
|---|---|---|---|
| First | 1-13 | 0-3 | Months 1-3 |
| Second | 14-27 | 3.2-6.2 | Months 4-6 |
| Third | 28-40 | 6.4-9.2 | Months 7-9 |
| Full Term | 40 | 9.2 | 9 months + |
📊 Common Conversions Reference
❓ Frequently Asked Questions
A: Most months have 30 or 31 days (4.28-4.43 weeks). February has 28 days (4 weeks) or 29 days in leap years. We use an average of 4.34524 weeks/month.
A: 40 weeks is approximately 9.2 months. Pregnancy is typically counted as 9 calendar months or 10 lunar months.
A: Both input fields work simultaneously. When you change the weeks value, months updates automatically and vice versa.
A: This converter uses the average month length (30.4368 days). For exact conversions, consider specific month lengths.