Contents
- 1 What is the diameter of a 21 foot round pool?
- 2 What is the radius of a 21 foot circle?
- 3 What is the circumference of a circle with diameter of 21?
- 4 How big is a 21 foot pool?
- 5 What is the circumference of a 27 foot round pool?
- 6 What is the area of 20 feet?
- 7 What is the circumference of a 20 foot circle?
- 8 How big is 21 inches round?
- 9 What is the radius of diameter 21 cm?
- 10 How much does a 21 foot round pool cost?
What is the diameter of a 21 foot round pool?
Approximate inside (water) dimensions – 21′ Diameter. Approximate outside dimensions (space required) – 22′ Diameter.

What is the radius of a 21 foot circle?
What is the area of a circle with a DIAMETER of 21 feet (radius of 10.5 feet)? How big is a 21 foot circle?…Area of a 21 Foot Circle.
346.36 | square feet |
---|---|
38.485 | square yards |
0.0079513 | acres |
32.178 | square meters |
321,780 | square centimeters |
What is the circumference of a circle with diameter of 21?
65.97 cm exactly or limited to de precision of this calculator (13 decimal places).
How big is a 21 foot pool?
A 21 foot above ground pool will comfortably fit 4-5 average size adults to swim, float and play….21′ Round Above Ground Pools.
Approx. U.S. Gallons | Yards of Sand | |
---|---|---|
21′ Round with 54″ Wall | 10,307 | 2-1/2 – 3 |
What is the circumference of a 27 foot round pool?
Diameter of a Circle

Diameter | ft | in |
---|---|---|
27′0″ | 84.82 | 1,018 |
27′1″ | 85.08 | 1,021 |
27′2″ | 85.35 | 1,024 |
27′3″ | 85.61 | 1,027 |
What is the area of 20 feet?
Examples for Calculating Square Footage The square footage of a room 20 feet wide and 20 feet long is 400 square feet. The square footage is found by multiplying the width (20 ft) by the length (20 ft).
What is the circumference of a 20 foot circle?
Diameter of a Circle
Diameter | ft | m |
---|---|---|
20′0″ | 62.83 | 19.15 |
20′1″ | 63.09 | 19.23 |
20′2″ | 63.36 | 19.31 |
20′3″ | 63.62 | 19.39 |
How big is 21 inches round?
2.40556 square feet (ft²)
What is the radius of diameter 21 cm?
A circle of radius = 10.5 or diameter = 21 or circumference = 65.97 cm has an area of: 3.464 × 10-8 square kilometers (km²) 0.03464 square meters (m²) 346.4 square centimeters (cm²)
How much does a 21 foot round pool cost?
Above Ground Pool Sizes and Prices
Size | 48” Wall | 54” Wall |
---|---|---|
18′ Round | $1,420 – $1,650 | $1,580 – $2,200 |
21′ Round | $1,670 – $1,990 | $1,720 – $2,400 |
24′ Round | $1,610 – $1,940 | $1,840 – $2,500 |
27′ Round | $1,900 – $2,300 | $2,100 – $2,800 |