Split King Bed Dimensions are 76 inches wide x 80 inches long combined, but the bed is split into two pieces of 38 inches wide and 80 inches long. These are standard split king size bed measurements. Split king Size Mattress depths can vary from just a few inches to 14" or more, depending upon the manufacturer. Many times, actual split king mattress dimensions will vary by one or two inches, usually smaller.
Metric to U.S. Conversion
For measuring purposes, the exact conversion is as follows: