Weeks to days

days = weeks × 7

How to convert weeks to days

One week is 7 days, so multiply the number of weeks by 7. For example, 20 weeks is 20 × 7 = 140 days. To go back, divide by the same number, or multiply by 0.14285714.

Quick estimate

Multiplying by about 7 gets within 0.0% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Time conversions come up in planning and scheduling, timesheets and pay, project estimates and working out ages or durations.

weeks	days
1 wk	7 d
2 wk	14 d
3 wk	21 d
4 wk	28 d
5 wk	35 d
6 wk	42 d
7 wk	49 d
8 wk	56 d
9 wk	63 d
10 wk	70 d
11 wk	77 d
12 wk	84 d
13 wk	91 d
14 wk	98 d
15 wk	105 d
16 wk	112 d
17 wk	119 d
18 wk	126 d
19 wk	133 d
20 wk	140 d
25 wk	175 d
30 wk	210 d
40 wk	280 d
50 wk	350 d
60 wk	420 d
70 wk	490 d
75 wk	525 d
80 wk	560 d
90 wk	630 d
100 wk	700 d
120 wk	840 d
150 wk	1,050 d
200 wk	1,400 d
250 wk	1,750 d
300 wk	2,100 d
400 wk	2,800 d
500 wk	3,500 d
750 wk	5,250 d
1,000 wk	7,000 d
1,500 wk	10,500 d
2,000 wk	14,000 d
5,000 wk	35,000 d
10,000 wk	70,000 d

Questions

How many days are in a week?

7 days.

How do I convert weeks to days in a spreadsheet?

Put the value in A1 and type =A1*7, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.