Convert cubic feet to pounds or pounds to volume using density, with presets for water, sand, soil, gravel, concrete, steel, gasoline, and air.
- All Unit Converters
- Average Density Calculator
- Cubic Feet to Tons Calculator
- Bulk Density Calculator
- Specific Gravity to Density Calculator
- Mass to Volume Calculator
- Weight to Volume Calculator
Cubic Feet to Pounds Formula
The following formula is used to convert cubic feet into pounds.
LBS = CF * D
- where LBS is the weight in pounds
- CF is the volume in cubic feet (ft^3)
- D is the density of the material or fluid (lbs/ft^3)
To calculate pounds from cubic feet, multiply the volume by the density in pounds per cubic foot.
| Cubic Feet (ft³) | Pounds (lb) |
|---|---|
| 1/16 | 3.902 |
| ⅛ | 7.803 |
| 1/6 | 10.405 |
| ¼ | 15.607 |
| ⅓ | 20.809 |
| ⅜ | 23.410 |
| ½ | 31.214 |
| ⅝ | 39.017 |
| ⅔ | 41.619 |
| ¾ | 46.821 |
| ⅞ | 54.024 |
| 1 | 62.428 |
| 1¼ | 78.035 |
| 1⅓ | 83.237 |
| 1½ | 93.642 |
| 1¾ | 109.249 |
| 2 | 124.856 |
| 2½ | 156.070 |
| 3 | 187.284 |
| 4 | 249.712 |
| * Rounded to 3 decimals. Assumes water (ρ = 62.42796 lb/ft³). US customary: 1 ft³ ≈ 62.428 lb. | |
How is cubic feet converted into pounds?
A cubic foot is a unit of volume and lbs is a unit of weight, so they can not be directly converted into one another without additional information.
In this case, the additional information is density. Density is a unit of measure of weight per unit volume, so multiplying it by the volume yields the weight.
How to calculate pounds from cubic feet?
Example Problem:
The following example problem outlines the steps and information needed to calculate pounds from cubic feet.
First, determine the total volume in cubic feet. In this example, the volume has a length, width, and height of 4 ft, 5ft, and 3ft respectively.
Multiplying the sides together yields the volume:
4*5*3 = 60 ft^3.
Next, determine the density of the object or material. In this case, the material has a density of 10 lbs / ft^3.
Finally, calculate the pounds from cubic feet using the formula above:
LBS = CF * D
LBS = 60*10
LBS = 600 lbs
