Acreage Calculator

Convert a lot or field size to acres from its length and width, and see square feet, square yards, square meters and hectares. Example: a 200 by 300 foot lot is 60,000 square feet, or 1.377 acres.

FreeNo sign-up

Length

Width

Unit

How to use the Acreage Calculator

Enter the length and width of the parcel.
Choose the unit.
Press Calculate to get acres and other area units.

Formula and method

Acres = length x width in feet / 43,560. One acre is 43,560 square feet, 4,840 square yards, 4,046.86 square meters or 0.4047 hectare.

Worked example: 200 x 300 ft

Step	Result
Square feet (200 x 300)	60,000
Acres (60,000 / 43,560)	1.3774
Square meters	5,574.2
Hectares	0.5574

Common lot sizes

Size	Square feet	Acres
50 x 100 ft	5,000	0.115
100 x 150 ft	15,000	0.344
150 x 290 ft	43,500	0.999
208.7 x 208.7 ft	43,560	1.000
330 x 660 ft (furlong x chain)	217,800	5.000

Acres and other units

An acre is about the size of a US football field without the end zones. A square mile has 640 acres and a hectare is 2.471 acres.

Frequently asked questions

How do I calculate acres?

Multiply length by width in feet and divide by 43,560.

How many square feet are in an acre?

43,560.

How big is an acre in feet?

About 208.7 by 208.7 feet if square.

How many acres is a hectare?

2.471 acres.

How do I measure an irregular lot?

Split it into shapes, find each area and add them.

How many acres are in a square mile?

640.

Sources

Related calculators

Browse all calculators

Effortless Math Team

16 minutes ago