Day Calculator › Days to Weeks

Days to Weeks Converter

Convert a number of days into weeks and back. Seven days make one week, so type either field.

Days ⇄ Weeks
days
=
weeks
Result30 days = 4.29 weeks
Quick answer
A week is seven days, so to turn days into weeks divide by 7. That makes 30 days about 4.29 weeks and 100 days a little over 14 weeks. To go back, multiply weeks by 7. This is a plain count of days, not a span between two calendar dates.

Conversion table

Days (days)Weeks (weeks)
7 days1
14 days2
21 days3
30 days4.29
60 days8.57
90 days12.86
100 days14.29
365 days52.14

How to convert Days to Weeks

weeks = days ÷ 7reverse: days = weeks × 7
days
the number of days
weeks
the equivalent number of weeks
7
days in a week

This converts a duration in days. To count the days between two calendar dates, use the day calculator on the home page.

Frequently asked questions

How many weeks is 30 days?

About 4.29 weeks, since 30 divided by 7 is 4.29.

How many weeks is 100 days?

About 14.29 weeks.

How many days is 6 weeks?

42 days.

Is a month 4 weeks?

Roughly, but most months are a little longer, about 4.3 weeks.