Vinyl Plank (LVP) Flooring Calculator
Enter the room, the coverage on your vinyl plank box and a waste allowance to get the boxes to buy, rounded up once. The table counts the example floor at one maker's printed cutting allowance.
A ready-made setup of the Flooring Calculator.
Estimates for planning, not professional advice. Read the full notice.
The drawing did not open. Length and width are still here.
Room: shape and size
Skip the drawingDrag a round corner to move it. The small hollow diamond on a side is its curve handle: drag it across the side to curve the side (it is not a corner). To add a corner (a new point), tap the side itself, then choose Add a point here. Tapping a corner or a side opens its actions. Drag empty space to move the view; pinch, or Ctrl and the mouse wheel, to zoom. The keys are listed under Keys.
Keys
- Tab
- next corner; each says how far it is from corner 1
- Arrow keys on a corner
- move it one square; ten with Shift; 1/16 in with Alt
- Delete or Backspace
- remove the corner; its two sides join in one straight side
- + on a corner
- add a corner halfway along the next side
- Arrow keys on the drawing
- move the view; farther with Shift
- + and - on the drawing
- zoom in and out
- 0 on the drawing
- show the whole shape
- Ctrl+Z (Cmd+Z on a Mac)
- undo, except inside a typed field (it keeps its own)
- Ctrl+Shift+Z or Ctrl+Y
- redo
- Escape while dragging
- put it back where it was
- Enter on a corner or side
- go to its actions
- Escape in the actions
- close them and go back to the drawing
The drawing did not load. Check your connection and try again.
- Area
- 320 ft²
- Perimeter
- 72 ft
- Cut-out edges
No area until the shape is fixed.
Estimate for planning, from what you entered and the product data shown. Check product labels and your supplier before you buy.
Shape: Rectangle Change
Sides
Corners
Cut-outs
Feet and inches, like 12' 6"
Example: a vinyl plank living area
18 flooring, by the box
- Floor area 320 ft²
- Area with the waste allowance, before rounding 352 ft²
- Flooring bought 360 ft²
- Bought beyond the floor's own area 40 ft²
Your project
Enter a size to see your total.
Each product is rounded up once for the whole project, so the total can be less than the items bought alone added together. A line counted from a cut layout (sheets, boards or tiles laid out piece by piece) is counted for each item and added.
Shopping list
| Item | Size | Buy |
|---|---|---|
| Flooring, by the box | flooring, by the box | 18 |
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Worked example: a vinyl plank living area
Show the working
- Area: length times width 20 ft × 16 ft = 320 ft²
- Add the waste allowance, once 320 ft² × 1.1 = 352 ft²
- Divide by the coverage of one box 352 ft² ÷ 20 ft² = 17.6 boxes
- Round up once, to whole boxes 17.6 boxes = 18 boxes of flooring
Assumptions
The figures behind the example. Sourced figures link to their source below; a default is a starting value to check against your label or supplier.
| Assumption | Value | Details and changes |
|---|---|---|
| Waste allowance | 10% | |
| Default Our starting value, not a sourced figure; your own allowance, added once. Change it for your layout. The allowances the makers print are in this page's table. | ||
| Coverage of one box | No default | |
| Default From the box label. Check your label or supplier. | ||
| Plank size | No default | |
| Default Width and length from the label; it does not change the count, which follows the box coverage. Check your label or supplier. | ||
| Expansion gap | No default | |
| Default Shown for your own layout; it does not change the box count. Check your label or supplier. | ||
Feet and inches, like 12' 6"
Vinyl plank boxes at one maker's allowance
Boxes for the example floor at the cutting allowance one maker prints for rigid-core locking floors, beside your own allowances
| Allowance | Allowance printed | Boxes |
|---|---|---|
| Maker's sheet, most installations | 10% | 18 |
| Your own, 5 percent | 5 % | 17 |
| Your own, 15 percent | 15 % | 19 |
Figures in the Allowance printed column are per AHF Products' published data, checked Nov 12, 2026.
Product names are trademarks of their owners. HoneyDoMath is not affiliated with, sponsored by or endorsed by these makers. Figures come from each maker's published sheets and are shown for information only.
Source: [1]
The first row is the allowance printed on one maker's rigid-core installation sheet; the others are allowances of your own. Each adds its allowance once and rounds up to whole boxes.
Questions
How many boxes of vinyl plank do I need?
Enter the room's length and width and the coverage printed on your box. The calculator adds the waste allowance once to the area, divides by the box coverage and rounds up once. A floor of a large open area is counted the same way as a small room.
How much extra vinyl plank should I buy?
The waste allowance is a field you can change. One maker's rigid-core sheet prints an allowance for most installations, shown in the table beside the boxes it gives for the example floor; the sheet for your own floor sets yours.
Can I draw an L-shaped room?
Choose Draw a shape above the fields to draw the outline. The area then replaces the length and width, and the box count follows that area.
Sources (1)
-
Rigid Core Locking Installation System (opens in new tab), AHF Products, installation sheet, undated.
Manufacturer data.
“Most installations will need approximately a 10% cutting allowance added to the square footage of the room.”
Per AHF Products' published data, checked Nov 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 1)
These are summaries of what the sources say, not professional advice. Codes and product data change. Check with your building department and the product label about your own project.
Sources
- [1] AHF Products, Rigid Core Locking Installation System. Checked November 12, 2026. https://www.bruce.com/cdn/content/sites/2/AHF-RigidCore-Installation.pdf