Yard and Lawn Area Calculator
Enter your yard's length and width, or draw its outline and cut out the house, and get the lawn square footage, square yards, acres and thousands of square feet, added exactly.
Estimates for planning, not professional advice. Read the full notice.
The drawing did not open. Length and width are still here.
Yard: 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
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- Area
- 15,000 ft²
- Perimeter
- 500 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 rectangular lot
15,000 ft²
- Square yards 1,666.67 yd²
- Acres 0.3444 acre
- Thousands of square feet, the unit seed and fertilizer rates use 15 thousands of sq ft
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.
Your area in each unit
The zones above are added exactly; nothing is rounded until it is shown.
Shopping list
| Item | Size | Buy |
|---|
Save on this device
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Worked example: a rectangular lot
Show the working
- Area: length times width 150 ft × 100 ft = 15,000 ft²
- Acres: the area over the area of an acre 15,000 ft² ÷ 43,560 ft² = 0.3444 acre
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 |
|---|
Feet and inches, like 12' 6"
Fractions of an acre in square feet
Square feet, square yards and thousands of square feet in common fractions of an acre
| Part of an acre | Square feet | Square yards | Thousands of square feet |
|---|---|---|---|
| One eighth of an acre | 5,445 ft² | 605 yd² | 5.45 |
| One quarter of an acre | 10,890 ft² | 1,210 yd² | 10.89 |
| One half of an acre | 21,780 ft² | 2,420 yd² | 21.78 |
| One acre | 43,560 ft² | 4,840 yd² | 43.56 |
| Two acres | 87,120 ft² | 9,680 yd² | 87.12 |
Each row is the fraction times the area of an acre, with no rounding before it is shown.
A lot with the house and driveway taken out
Lot area, house, driveway, the lawn left, and the lawn left in acres and thousands of square feet
| Part | Area |
|---|---|
| Lot | 15,000 ft² |
| House | 1,200 ft² |
| Driveway | 480 ft² |
| Lawn left | 13,320 ft² |
| Lawn left in acres | 0.3058 acre |
| Lawn left in thousands of square feet | 13.32 |
The house and the driveway are examples of cut-outs: draw them as holes in the shape editor and the area comes off the same way.
Questions
How do I measure the lawn square footage of an irregular yard?
Draw the outline in the shape editor, or add each rectangular part as its own zone. The zones are added exactly and the total is shown rounded once.
How many acres is my yard?
Divide the square feet by the square feet in an acre. The calculator shows acres beside square feet and square yards, and the first table lists common fractions of an acre.
How do I take the house out of the lawn area?
Draw the house as a hole in the outline, or measure the lot and the house and subtract. The second table shows the subtraction for an example lot.