Jungle Studios ToolsMeasure before you choose
Bedspread Size & Drop Comparison
Enter your mattress measurements, then add the dimensions of a bedspread, comforter, quilt, or coverlet to see how it would fit. Add up to two more options to compare.
These estimates assume the bedding hangs evenly on both sides, with its top edge lined up with the mattress at the head of the bed. Measurements are for bedding laid flat; fabric and filling can change how it hangs.
Estimated fit based on the measurements you entered.
How close the bedding comes to the floor
These estimates describe the straight edges along the sides and foot, not the corners. Fabric may hang differently, and the calculator cannot predict how extra fabric folds or gathers on the floor.
These estimates assume the bedding hangs evenly on both sides, with its top edge lined up with the mattress at the head of the bed. Measurements are for bedding laid flat; fabric and filling can change how it hangs.
How to measure your bed and bedding
Measure the mattress across its top for width and from head to foot for length. Leave the frame out of both measurements. If a topper changes the usable top surface, measure the surface you intend to cover. Keep the tape straight and use the same unit for every measurement. Double-check your measurements before comparing products.
For bedding, width is the dimension you intend to place across the bed; length runs toward the foot. Check the product listing carefully because sellers may list dimensions in either order. If you already have the bedding, measure it flat without stretching it. Enter width and length for the way you plan to place the bedding on the bed; the calculator won’t swap them.
What side and foot drop mean
“Drop” means how far the bedding hangs down from the top edge of the mattress. Extra width is shared evenly between the two sides. With the bedding lined up at the head of the bed, all extra length hangs at the foot.
Side drop = (bedding width − mattress width) ÷ 2.
Foot drop = bedding length − mattress length.
If the bedding is too narrow or too short, the results show how much of the mattress top remains uncovered. A long, narrow quilt may hang at the foot while leaving the top uncovered along the sides. A wide, short quilt may hang down the sides while leaving the top uncovered at the foot. A drop on one edge does not mean the whole mattress is covered.
The exposed-top distances are separate measurements, not a total uncovered area.
Two different optional heights
Mattress thickness tells you whether the bedding reaches the bottom of the mattress or leaves part of it showing. Measure from the mattress bottom to its top edge, including a topper if you use one. Leave out the base, box spring, and legs.
Mattress top to floor tells you how far the bedding would need to hang to reach floor level. Measure straight down from the top edge of the mattress or topper to the floor, including the height of the support underneath. If your mattress rests directly on the floor, this measurement can be the same as its thickness.
You can enter either measurement, both, or neither. Leave a measurement blank if you don’t know it; the tool will still calculate side and foot drop.
A worked example
A 60 × 80 inch mattress with 90 × 100 inch bedding gives 15 inches of side drop and 20 inches at the foot. With a 14 inch mattress thickness, those edges extend 1 inch and 6 inches below the mattress bottom. If the mattress top is 26 inches above the floor, the side edges remain 11 inches above the floor and the foot edge remains 6 inches above it.
Bedding can cover the mattress top while leaving the bottom of its sides showing if it doesn’t hang down far enough. If the estimated drop is longer than the distance to the floor, there is extra fabric, but the calculator cannot predict how it will fold or gather, or how the corners will hang.
Frequently asked questions
Can I compare comforters, quilts, and coverlets?
Yes, as long as the bedding is a flat rectangle. Enter its actual width and length. The same calculations apply, but thick or filled comforters may hang differently.
Why isn't extra length divided by two?
The bedding's head edge is aligned with the mattress head edge. Extra length is left only at the foot.
What does bedding narrower than my mattress mean?
With the bedding centered, some of the mattress top stays uncovered on each side. The bedding won’t reach the side edges, so there is no side drop or floor estimate at the sides.
Why does it cover the top but leave the mattress sides showing?
The bedding may not hang down far enough to reach the bottom of the mattress. Enter your mattress thickness to see how much of the sides would remain uncovered.
Will it reach the floor?
Enter the height from the mattress top to the floor to estimate whether the bedding’s side and foot edges stop above floor level, reach it, or have extra length. Corners and the way the fabric hangs can differ from these estimates.
Is mattress thickness the same as height to floor?
No. Height to floor also includes the base and legs. Measure each separately if you want both checks.
Can I rely on Queen or King labels?
Use the actual width and length of your mattress and the bedding you’re considering. A Queen or King label alone isn’t enough for this calculation.
Does this include pillows or tucking?
No. These estimates assume the bedding is centered across the mattress and lined up at the head, without extra fabric over pillows, folded back at the top, or tucked underneath. They don’t account for shrinkage, stretching, frames that stick out beyond the mattress, or fitted or shaped bedspreads.
Choosing a tablecloth too? Try Tablecloth Size Comparison to see how far each option hangs over your table.
