About the Wrapping Paper Calculator
Cutting wrapping paper by eye usually means either a sheet that does not quite reach around the box or a large offcut that goes in the bin. Measuring first saves paper, money and frustration, especially when wrapping many gifts at once for the holidays, a birthday party or a business.
This wrapping paper calculator works out the size of sheet a box needs from its length, width and height, the area of paper used, how many such sheets fit on a roll and how many rolls you need for a number of identical boxes. It works in inches and feet or in centimetres and metres.
How to Use the Wrapping Paper Calculator
Choose inches and feet or centimetres and metres.
Enter the box length, width and height.
Enter the overlap where the paper edges meet, usually about 2 inches or 5 cm.
Enter the roll width and roll length, and the number of identical boxes.
The Formulas
around the box = 2 × (width + height) + overlap
end to end = length + height + 1 in (2.5 cm)
sheet = around × end to end
sheets per roll = the better of the two ways the sheet fits on the roll
rolls = boxes ÷ sheets per roll, rounded upStep-by-Step Example
A 12 × 10 × 4 inch box, a 30 inch × 15 foot roll and 12 boxes.
around = 2 × (10 + 4) + 2 = 30 in
end to end = 12 + 4 + 1 = 17 in
sheet = 30 × 17 in (3.5 ft²)
per roll = the 30 in side across the roll; 180 in ÷ 17 = 10 sheets
rolls = 12 ÷ 10 → 2 rollsWhy These Measurements Work
The paper wraps around the box in one direction, covering the top, bottom and both sides: twice the width plus twice the height. A small overlap lets you tape the edge underneath. In the other direction, the paper covers the length of the box and must fold over each end. Each end is closed with flaps from both sides that meet in the middle, so each side of the end needs half the height, and the two ends together need one full height, plus a little extra so the flaps overlap.
Placing the box upside down on the paper hides the seam on the bottom. Wrap the long side first, tape it, then fold each end: push the sides in, crease the top flap down, and fold the bottom flap up over it.
Making the Most of a Roll
Rolls are commonly about 30 inches (76 cm) wide, with lengths from 10 to 40 feet or more. The calculator tries the sheet both ways across the roll and uses whichever fits more sheets. Very large boxes may need a sheet wider than the roll in both directions; then you can join two pieces with a neat seam on the bottom, use a wider roll or kraft paper, or choose a gift bag.
Buying one long roll is often cheaper per square foot than several short rolls, and patterned paper with a printed grid on the back makes straight cutting much easier.
Wrapping Odd Shapes
The calculation assumes a rectangular box. For cylinders, wrap around the circumference with an overlap, and allow the diameter plus a little extra for pleating the ends. For soft or irregular gifts, a box or tissue paper inside a gift bag is often easier and wastes less.
Wrapping Many Gifts Efficiently
When wrapping a stack of presents, sort the boxes by size and cut the largest sheets first, then use the offcuts for small boxes. Cutting several sheets of the same size at once, with the roll unrolled along a large table, keeps the lines straight and speeds things up. A pair of sharp scissors, or a craft knife and ruler, gives cleaner edges than tearing.
Ribbons and Tags
Ribbon is calculated the same way as the paper. To tie a ribbon once around the box in each direction, you need two times the length plus two times the width plus four times the height, with about 20 inches or 50 cm extra for the bow. For the example box that is 2 × 12 + 2 × 10 + 4 × 4 = 60 inches, plus 20 inches for the bow, or 80 inches in total.
Eco-Friendly Wrapping
Many glossy, foil and glitter papers cannot be recycled. Plain or kraft paper, fabric wraps such as furoshiki and reusable gift bags are greener alternatives. Measuring before cutting also cuts waste, since the most common source of discarded paper is an offcut that was too small to use.
Measuring the Box
Measure the box with a tape measure along each edge, rounding up to the next half inch or centimetre. Length is usually the longest side, but for the formula it simply means the direction the ends fold over; if a sheet does not fit the roll one way, swapping length and width can change which side wraps around and may let it fit.
Understanding Your Result
The headline gives the sheet size: around the box by end to end.
The area line gives the paper used per box.
The per roll line gives how many sheets fit on your roll.
The rolls line gives how many rolls to buy for all the boxes.
When Should You Use This Calculator?
Use it before cutting paper for a gift.
Use it to buy the right number of rolls for many gifts.
Use it to compare roll sizes for value.
Common Mistakes
Forgetting the height on the ends. The ends need the full height between them.
No overlap. Edges that only just meet tear when taped.
Cutting across the pattern. Check the sheet fits with the roll's grid.
Wrapping the box right side up. Put it upside down to hide the seam.