Standard US Mattress Sizes / Bed Sizes Table

US Mattress sizes are mostly standardized, and usually only vary 1 inch from this bed sizes table:

Twin Size Mattress Dimensions 39" x 75"
Twin XL Size Mattress Dimension 39" x 80"
Full Size Mattress Dimensions 54" x 75"
Full XL Size Mattress Dimensions 54" x 80"
Queen Size Mattress Dimensions 60" x 80"
King Size Mattress Dimensions 76" x 80"
California King Size Mattress Dimensions 72" x 84"

Use the bed size table to help fit sheets, comforters, quilts, bedskirts, and other bedding items. The twin size bed, full size bed, queen size bed, king size bed, and california king size bed measurements are all close enough among US bedding manufacturers that you should not have any problems fitting bedding.

Check bedding sizes against mattress sizes to be sure comforters, bedspreads, quilts, duvet covers, and top sheets have a long enough drop to cover the thickness of your mattress measurements.

Convert U.S. Mattress Size Dimensions to Metric

Use the following coversion ratios for mattress measurements in metric units:
  • 1 inch = 2.54 centimeters
  • 1 foot = 30.48 centimeters
  • 1 meter = 39.37 inches

Here's a handy tool to help convert mattress size measurements into metric, or visa versa.

See also: High Density Foam Mattress Measurements and Durability