To convert 40 weeks into months:

• There are about 4.345 weeks in a month (since 52 weeks ÷ 12 months ≈ 4.345).
• So, 40 weeks ÷ 4.345 weeks/month ≈ 9.2 months.

Summary:

40 weeks ≈ 9.2 months This is why a typical pregnancy, often said to be 40 weeks, is roughly 9 months long.