Short answer: a week is 7 days, so 1,000 weeks equals 7,000 days. Details:
- Definition: a week consists of 7 days. This is a standard unit of time used globally, with each week containing exactly 7 days.
 
- Quick conversions: multiply the number of weeks by 7 to get days, and by 52 to get approximate years (since 52 weeks ≈ 1 year). For example, 1,000 weeks ≈ 7,000 days ≈ 19.18 years. Note that using 52 weeks per year is an approximation because a calendar year is 365.24 days, which is about 52.14 weeks.
 
If you meant a different quantity or need more precise year conversion, specify whether you want calendar years or a decimal year based on exact days.
