Pounds to US Cups for Cardboard
Snapshot
For Cardboard, 1 Pound equals about 2.73889 US Cups. Conversion Encyclopedia keeps one material-density basis on this page so the calculator, common values, and reverse page stay aligned.
- Material basis: Cardboard at 700 kg/m^3.
- Example: For 0.1 Pounds of Cardboard, the result is 0.273889 US Cups.
- Use the reverse page if you need the opposite direction with the same basis.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Converter Calculator
2.73889 US Cups (Cardboard)
SwitchExplanation
The converter converts pounds of Cardboard into us cups using one fixed density basis of 700 kg/m^3. The same density model is used in the calculator, common values, and mirror page so storage, batching, and material-planning checks stay aligned.
Approximate cardboard sheet bulk density.
Common Conversion Values
| Pounds (Cardboard) | US Cups (Cardboard) |
|---|---|
| 0.1 | 0.273889 (about 1/4 cup) |
| 0.25 | 0.684722 (about 2/3 cup) |
| 0.5 | 1.369445 (about 1 3/8 cups) |
| 1 | 2.73889 (about 2 3/4 cups) |
| 2 | 5.47778 (about 5 1/2 cups) |
| 5 | 13.694449 (about 13 3/4 cups) |
| 10 | 27.388898 (about 27 3/8 cups) |
| 25 | 68.472244 (about 68 1/2 cups) |
| 50 | 136.944488 (about 137 cups) |
| 100 | 273.888977 (about 273 7/8 cups) |
Cardboard density and calculation basis
Cardboard is represented in this table by a fixed reference density of 700 kg/m^3, equivalent to 0.7 g/cm^3. Approximate cardboard sheet bulk density.
At this fixed reference, 1 liter of Cardboard corresponds to 0.7 kg, while 1 kg corresponds to 1.428571 liters. Its table density is 29.8% lower than the 997 kg/m^3 water reference used in this dataset.
Among the 5 fixed table records labeled Wood and paper, the nearest density to Cardboard is Wood (Oak) at 750 kg/m^3: an absolute difference of 50 kg/m^3 (7.1% relative to Cardboard). 2 records have a lower fixed density and 2 have a higher one. The observed range in this labeled group is Wood (Balsa) at 160 kg/m^3 to Paper at 800 kg/m^3. This is a numerical comparison, not a claim that the materials are interchangeable.
For this direction, volume is calculated as mass divided by density after normalizing the units to kilograms and cubic meters. The resulting page multiplier is 2.73889 cup (US) per lb.
The fixed value supports repeatable calculations but is not a batch, grade, supplier, or laboratory specification. Use a measured or certified density when those conditions control the result.
Frequently Asked Questions
How much cup (US) is 1 lb of Cardboard?
1 lb of Cardboard equals 2.73889 cup (US) on this page.
What density does this Cardboard page use?
This page uses a fixed density of 700 kg/m^3 for Cardboard.
Is there a reverse page with the same density basis?
Yes. Use the mirror page (/material-density/us-cups-to-pounds/cardboard/) to convert in the opposite direction with the same fixed density basis.