3/4 Size Bed Dimensions are 48 inches wide x 75 inches long. These are standard 3/4 size bed measurements. 3/4 Size Mattress depths can vary from just a few inches to 14" or more. Many times, 3/4 Size actual 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:

• One inch is equal to exactly 2.54 centimeters.
• One foot is equal to 30.48 centimeters.
• One meter is equal to 39.37 inches.