Need to know how many square feet are in an acre, or how big a lot really is? This free land area converter switches between acres, square feet, square yards, square meters, hectares, square miles, roods and perches in one click. Whether you are checking a property listing, planning a garden or farm, or comparing a plot measured in metric with one measured in imperial, you get an accurate answer instantly. The built-in lot size calculator works out the area from length and width and shows it in acres, square feet, hectares and more.
How to Use
- Type the area you want to convert in the “Enter value” box. For example, 2.5.
- Choose the unit you are converting from (for example, acres) and the unit you want (for example, square feet). The result appears instantly.
- Use the swap button to reverse the conversion, or tap a quick preset such as 1 acre, 1/2 acre, 1/4 acre or 1 hectare.
- Scroll down to see the same area in every unit at once, and use the Copy button to save the result.
- To measure a lot from its dimensions, open the Lot Size Calculator tab, enter the length and width, and choose feet, yards, meters or inches. For example, a 100 x 200 ft lot is 20,000 sq ft, which is about 0.46 acres.
FAQs
Q1. How many square feet are in an acre?
1 acre = 43,560 square feet.
Q2. How many square feet are in half an acre and a quarter acre?
Half an acre is 21,780 sq ft, and a quarter acre is 10,890 sq ft.
Q3. How many square meters are in an acre?
1 acre is about 4,046.86 square meters, or 0.4047 hectares.
Q4. How many acres are in a hectare?
1 hectare = 2.471 acres, which is 10,000 square meters.
Q5. How many acres are in a square mile?
1 square mile = 640 acres.
Q6. How do I calculate acres from length and width?
Multiply the length by the width in feet to get square feet, then divide by 43,560. Our Lot Size Calculator does this for you and also accepts yards, meters and inches.
Q7. How many square yards are in an acre?
1 acre = 4,840 square yards.
Q8. What are a rood and a perch?
These are traditional UK and Commonwealth land units. A rood is a quarter of an acre (10,890 sq ft), and a square perch (also called a square rod) is 272.25 sq ft. There are 160 perches in an acre.
Q9. How big is an acre compared with a football field?
An American football field including both end zones is about 57,600 sq ft, which is roughly 1.32 acres. So one acre is a bit smaller than a football field.
Q10. Is an acre the same in the US, UK and Canada?
Yes. All three use the international acre (43,560 sq ft). The old US survey acre differs by only a tiny fraction, which doesn’t matter for everyday use.
Q11. Is this converter free to use?
Yes. It is free, needs no signup, and works on mobile and desktop.
