Acreage & Perimeter Calculator
Convert parcel dimensions into area, perimeter and fencing quantities across imperial and metric units, including Nigerian plots and block-wall takeoff.
- US Acre
- 43,560 sqft
- Standard survey
- Hectare
- 10,000 sqm
- Metric standard
- NG Plot
- 648 sqm
- Lagos convention
Formula & Statutory Rule
Formula
area = width × length; perimeter = 2 × (width + length)
Statutory Rule
posts = ceil(perimeter / spacing) + 1; blocks = perimeter × courses / block_lengthRegional Benchmark Reference
| Jurisdiction / Tier | Rate or Limit | Statutory Note |
|---|---|---|
| Acre | 43,560 sqft | 4,046.86 sqm |
| Hectare | 10,000 sqm | 2.471 acres |
| NG plot | 648 sqm | Lagos |
Frequently Asked Questions
How many square feet are in an acre?
One acre is exactly 43,560 square feet, or 4,046.86 square metres.
How do I convert acres to hectares?
Divide acres by 2.471, or multiply hectares by 2.471 to get acres.
How many posts do I need?
Divide the perimeter by the post spacing and add one for the closing post, plus corner posts.
What is a Nigerian plot?
A standard residential plot in Lagos is 648 square metres; a half-plot is 464.5 square metres.