Calculation note
Weeks are human planning units, but many records still ask for days. A clean conversion preserves the seven-day rule and keeps calendar-specific questions separate from simple duration arithmetic.
A week is a seven-day duration for this calculation
The calculator treats each entered week as seven fixed days. That makes the conversion reliable for unit work, planning notes and classroom examples.
Calendar counting is a different question
A six-week project can be 42 fixed days, but actual calendar records may care about start dates, weekends, holidays, due-date inclusion and local time rules. Those assumptions belong on the record.
Printable duration notes prevent unit drift
When a plan moves from weeks into days, hours or minutes, a printout keeps the original week count, formula and notes together so the number can be checked later.