Conversion formula

The conversion factor from hours to seconds is 3600, which means that 1 hour is equal to 3600 seconds:

1 hr = 3600 s

To convert 4200 hours into seconds we have to multiply 4200 by the conversion factor in order to get the time amount from hours to seconds. We can also form a simple proportion to calculate the result:

1 hr → 3600 s

4200 hr → T_(s)

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

T_(s) = 4200 hr × 3600 s

T_(s) = 15120000 s

The final result is:

4200 hr → 15120000 s

We conclude that 4200 hours is equivalent to 15120000 seconds:

4200 hours = 15120000 seconds

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 second is equal to 6.6137566137566E-8 × 4200 hours.

Another way is saying that 4200 hours is equal to 1 ÷ 6.6137566137566E-8 seconds.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four thousand two hundred hours is approximately fifteen million one hundred twenty thousand seconds:

4200 hr ≅ 15120000 s

An alternative is also that one second is approximately zero times four thousand two hundred hours.

Conversion table

hours to seconds chart

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