4W
# 4W

4W or 4-W may refer to:

## Units of measurement

* 4°W, or 4th meridian west, a longitude coordinate
* 4 watts
* 4 weeks
* 4 wins, abbreviated in a Win–loss record (pitching)

## Transportation

* SLC-4W, designation for one of two launch pads at Vandenberg Air Force Base Space Launch Complex 4
* AD-4W, a model of Douglas A-1 Skyraider
* 4-wheel vehicle, especially vehicles with four wheel drive
* BP-4W, a model of Mazda B engine
* 4w (locomotive), a type of locomotive under the Whyte notation

## Other

* 04W, a designation for Typhoon Nina (1975)
* 4W, the production code for the 1977 Doctor Who serial The Sun Makers
