Lot Size to Acres

Enter your lot’s frontage and depth to get its size in acres. Most listings and plats give these two numbers in feet.

Lot dimensions to acres

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Common lot sizes in acres

Lot (ft)Square feetAcres
25 × 1002,5000.057
40 × 1004,0000.092
50 × 1005,0000.115
50 × 1507,5000.172
60 × 1207,2000.165
65 × 1308,4500.194
75 × 15011,2500.258
80 × 12510,0000.23
100 × 10010,0000.23
100 × 15015,0000.344
100 × 20020,0000.459
150 × 30045,0001.033
208.71 × 208.7143,5601
200 × 40080,0001.837
330 × 660217,8005

Lot not rectangular? Use the irregular lot calculator or trace it on the map acreage calculator.

Frequently asked questions

How many acres is a 50 x 100 lot?

50 × 100 ft = 5,000 sq ft, which is 0.115 acres.

How many acres is a 100 x 100 lot?

100 × 100 ft = 10,000 sq ft, or about 0.23 acres, a bit under a quarter acre.

What is the average lot size in the US?

Lot sizes vary widely by region, but newly built single-family homes have tended to sit on lots of roughly 0.15–0.20 acres (about 6,500–9,000 sq ft), with larger lots in rural areas.

What does lot size on a listing mean?

It is the land area of the parcel, usually shown in square feet or acres. Divide square feet by 43,560 to get acres.