Cubic Feet to Square Feet Calculator

5 cubic feet equals to 20 square feet, use this cubic feet to square feet convert to convert more using Square Feet = Cubic Feet ÷ Height (or Depth) conversion formula .

If you have a room that’s 10 feet long, 10 feet wide, and 8 feet high, its volume would be 800 cubic feet. Its floor area would be 100 square feet.

Cubic Ft Converted to	Square Feet
1	4
2	8
3	12
4	16
5	20
6	24
7	28
8	32
9	36
10	40
11	44
12	48
13	52
14	56
15	60
16	64
17	68
18	72
19	76
20	80
21	84
22	88
23	92
24	96
25	100
26	104
27	108
28	112
29	116
30	120
31	124
32	128
33	132
34	136
35	140
36	144
37	148
38	152
39	156
40	160
41	164
42	168
43	172
44	176
45	180
46	184
47	188
48	192
49	196
50	200
51	204
52	208
53	212
54	216
55	220
56	224
57	228
58	232
59	236
60	240
61	244
62	248
63	252
64	256
65	260
66	264
67	268
68	272
69	276
70	280
71	284
72	288
73	292
74	296
75	300
76	304
77	308
78	312
79	316
80	320
81	324
82	328
83	332
84	336
85	340
86	344
87	348
88	352
89	356
90	360
91	364
92	368
93	372
94	376
95	380
96	384
97	388
98	392
99	396
100	400
200	800
300	1200
400	1600
500	2000
600	2400
700	2800
800	3200
900	3600
1000	4000
2000	8000
3000	12000
4000	16000
5000	20000
6000	24000
7000	28000
8000	32000
9000	36000
10000	40000

Cubic Ft to Sq Ft Conversion Formula

The formula for converting cubic feet to square feet is:

Square Feet = Cubic Feet ÷ Height (or Depth)

You have 100 cubic feet of concrete and want to pour it 4 inches (0.33 feet) thick.

Calculation: 100 ÷ 0.33 = 303.03 square feet of coverage

How to Convert Cubic Feet to Square Feet?

Converting cubic feet to square feet involves these steps:

Determine the volume in cubic feet
Identify the desired depth or height in feet
Divide the volume by the depth

You have 50 cubic feet of mulch to spread 3 inches (0.25 feet) deep.

Calculation: 50 ÷ 0.25 = 200 square feet of coverage

How Many Cubic Feet are in a Square Foot?

Consider a box with:

Base: 1 square foot
Height: 1 foot
Volume: 1 cubic foot

If you change the height to 2 feet, the same 1 square foot base would contain 2 cubic feet of volume.

How Many Square Feet Will 1 Cubic Foot Cover?

The coverage area of 1 cubic foot depends on how thinly you spread it.

At 1-inch depth (0.083 feet): 12 square feet

At 2-inch depth (0.167 feet): 6 square feet

At 3-inch depth (0.25 feet): 4 square feet

Spreading 1 cubic foot of sand:

At 0.5-inch depth (0.042 feet)

Calculation: 1 ÷ 0.042 = 23.8 square feet of coverage

How Big is 2000 Cubic Feet in Square Feet?

At an 8-foot ceiling height: 2000 ÷ 8 = 250 square feet
At a 10-foot ceiling height: 2000 ÷ 10 = 200 square feet
At a 12-foot ceiling height: 2000 ÷ 12 = 166.67 square feet

References:

National Institute of Standards and Technology (NIST): https://www.nist.gov/pml/weights-and-measures

Related Conversion Calculators:

Cubic Feet to Square Feet Calculator – Convert Cubic ft to Sq ft