Area & Volume Calculator

Enter length, width (and height for volume). For example, a 10×12 ft room is 120 square feet.

What to find
Measured in
Feet
Feet

Area

120 sq ft

Area
120 sq ft

The area is 120 square feet.

How this was calculated
  1. Area = 10 × 12 = 120 sq ft

How to use

  1. Choose area or volume.
  2. Choose feet or metres and enter the sizes.
  3. See the result in sq ft / cft.

Formulas

What Formula Example
Area Length × width 10 × 12 = 120 sq ft
Volume L × W × H 10 × 12 × 10 = 1,200 cft

Examples

Room floor: 10 × 12 ft — area 120 sq ft.

Water tank: 5 × 4 × 3 ft — volume 60 cft.

More: cft to litres

1 cft = 28.32 litres. So a 60 cft tank holds about 1,700 litres. The same conversion works for fish ponds or septic tanks.

Frequently asked questions

What are the area and volume formulas?

Area = length × width; volume = length × width × height. A 10 × 12 room is 120 sq ft; with height 10 the volume is 1,200 cft.

How do I convert sq ft to sq metres?

Divide sq ft by 10.764. So 120 sq ft ≈ 11.15 sq metres.

If I enter metres, what unit is the result?

Results always come in sq ft and cft (1 m = 3.28 ft).

Does it work for triangular plots?

No — this is for rectangular sizes. For irregular plots see the land area calculator.

Can I use it for paint or tiles?

Yes. Find the wall area first to estimate paint or tile quantities.

Also searched as

room area calculator · box volume calculator