## Conversion formula

The conversion factor from days to weeks is 0.14285714285714, which means that 1 day is equal to 0.14285714285714 weeks:

1 d = 0.14285714285714 wk

To convert 40 days into weeks we have to multiply 40 by the conversion factor in order to get the time amount from days to weeks. We can also form a simple proportion to calculate the result:

1 d → 0.14285714285714 wk

40 d → T(wk)

Solve the above proportion to obtain the time T in weeks:

T(wk) = 40 d × 0.14285714285714 wk

T(wk) = 5.7142857142857 wk

The final result is:

40 d → 5.7142857142857 wk

We conclude that 40 days is equivalent to 5.7142857142857 weeks:

40 days = 5.7142857142857 weeks

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 week is equal to 0.175 × 40 days.

Another way is saying that 40 days is equal to 1 ÷ 0.175 weeks.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty days is approximately five point seven one four weeks:

40 d ≅ 5.714 wk

An alternative is also that one week is approximately zero point one seven five times forty days.

## Conversion table

### days to weeks chart

For quick reference purposes, below is the conversion table you can use to convert from days to weeks

days (d) weeks (wk)
41 days 5.857 weeks
42 days 6 weeks
43 days 6.143 weeks
44 days 6.286 weeks
45 days 6.429 weeks
46 days 6.571 weeks
47 days 6.714 weeks
48 days 6.857 weeks
49 days 7 weeks
50 days 7.143 weeks