⚖️ ft³ to pounds Calculator
Convert cubic feet of a substance into pounds and kilograms using density.
Excellent for tank contents, bulk materials, and chemical storage calculations.
Pure water at ~4°C.
Pounds: 624.2796 lb
Kilograms: 283.168466 kg
How to Use This Calculator
Enter the volume
Provide the material volume in cubic feet.
Choose density
Select a preset material or specify custom density in g/cc (grams per cubic centimeter).
Review mass outputs
The calculator reports weight in pounds and kilograms using the specified density.
Formula
Cubic centimeters = ft³ × 28,316.8466
Mass (g) = Volume (cc) × Density (g/cc)
Pounds = Mass (g) ÷ 453.59237
Kilograms = Mass (g) ÷ 1,000
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Bulk materials are often measured by volume, but weight is needed for shipping, buoyancy, or structural analysis. This tool combines volume and density to deliver accurate mass estimates.
Density is entered in grams per cubic centimeter, a common lab measurement. Presets cover water, oils, and mercury—adjustable via a custom field for other substances.
Results are shown in pounds and kilograms, covering U.S. customary and SI preferences.
Frequently Asked Questions
Where do I find density values?
Material safety data sheets, engineering handbooks, or quick online references list densities in g/cc or kg/m³.
Can I use kg/m³ instead?
Convert kg/m³ to g/cc by dividing by 1,000 (1,000 kg/m³ = 1 g/cc), then enter the value here.
Does temperature affect results?
Yes. Density changes with temperature. Use density values measured at your operating temperature for precise results.
Can I convert back from pounds to ft³?
Yes. Use the same density to convert mass back to volume: ft³ = (Mass (pounds) × 453.59237 / Density) ÷ 28,316.8466.