Acreage Calculator
Find the acreage of a lot or field from its length and width, in acres and hectares.
Land area
1.000 acres
- Square feet
- 43,560 sq ft
- Hectares
- 0.405 ha
- Square yards
- 4,840 sq yd
The lot is 1 acres (43,560 sq ft, or 0.405 ha).
Calculation breakdown
| Step | Formula | Result |
|---|---|---|
| Area | 660 × 66 | 43,560.00 sq ft |
| Acres | 43,560 sq ft ÷ 43,560 | 1.0000 acres |
How it works
Choose the shape of the lot and enter its size in feet (or meters). Add a price per acre to estimate the cost of the land.
Worked example
A lot 660 ft long and 66 ft wide:
- Area: 660 × 66 = 43,560 sq ft
- Acres: 43,560 ÷ 43,560 = 1 acre
- In metric: 43,560 × 0.09290304 = 4,046.86 m², or 0.405 ha
At $12,000 an acre the land would cost $12,000.
Sources
Frequently asked questions
How many square feet are in an acre?
One acre is exactly 43,560 square feet, according to NIST Handbook 44. That is the same as 4,840 square yards or about 4,047 square meters.
How do I calculate acreage?
Find the area of the land in square feet, then divide by 43,560. For a rectangle, the area is length times width. A lot 660 feet long and 66 feet wide is 43,560 square feet, which is exactly 1 acre.
How big is an acre in feet?
An acre has no fixed shape, only a fixed area. A square acre is about 208.7 feet on each side, and a classic acre is 660 feet (one furlong) by 66 feet (one chain).
How do I convert acres to hectares?
Multiply acres by 0.4047 (more exactly 0.40468564224). One hectare is 10,000 square meters, or about 2.471 acres.
How do I measure an irregular lot?
Split it into rectangles, triangles and circles, work out each part with this calculator, and add the acres together. For a legal boundary, use the figures on your deed or a professional survey rather than your own measurements.
Results are estimates for planning only. Property boundaries and legal acreage come from your deed or a licensed surveyor.