AcreRulerMeasure your lot in four steps
- Search your address (or paste coordinates). A numbered pin lands on it.
- Tap Area. Put the crosshair on a corner of the lot and tap Add point. Repeat for each corner. Fence lines, driveways and tree lines are good guides.
- Tap Finish. The area shows in acres; tap a chip to switch to sq ft, hectares or sq yd.
- Have a deed or county record? Tap the area, use ✎ to type the real side lengths, and enter the known acreage in Check against known to see the % difference.
Acres to square feet and back
| Acres | Square feet | Typical example |
|---|---|---|
| 0.1 | 4,356 | Small city lot |
| 0.25 | 10,890 | Suburban lot |
| 0.5 | 21,780 | Large suburban lot |
| 1 | 43,560 | About 75% of an American football field |
| 5 | 217,800 | Small hobby farm |
To convert by hand: acres = square feet ÷ 43,560. A rectangle 208.7 ft on each side is almost exactly one acre.
Why your number may differ from the deed
- Deeds measure to legal boundary lines, which are often not where fences are.
- Aerial photos can be offset by a metre or two and may be a year or more old (the capture date is shown on the map). Type known side lengths to correct.
- Steep land has more surface than its flat (map) area. Deeds use flat area too.
For a sale, a dispute or building permits, hire a licensed land surveyor. AcreRuler is an estimate, not a legal survey.
FAQ
How many square feet are in an acre?
43,560 square feet, or about 4,046.86 square metres.
Can I measure land that isn't a rectangle?
Yes. Add as many corners as you need, or use Trace to drag your finger along curved boundaries like creeks.
Can I see property lines?
Parcel lines are coming in the next version. For now, trace from your plat or survey and type the side lengths from it.