Mass per volume density.
Pounds per Cubic foot to Troy ounces per Cup Converter — lb/ft3 to oz t/cup
Convert Pound per Cubic foot (lb/ft3) to Troy ounce per Cup (oz t/cup) using the exact conversion factor (1 pound per cubic foot = 0.1218442564 troy ounce per cup). See the formula, worked examples, conversion table, and common uses.
Pounds per Cubic foot to Troy ounces per Cup converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 16.01846337 / 131.4667088.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Cubic foot to Troy ounces per Cup
Pound per Cubic foot and Troy ounce per Cup both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Pound per Cubic foot is most often used for us construction material density specs (concrete, soil, lumber, insulation).
Formula
troy ounces per cup = pounds per cubic foot × 0.121844256366
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic foot equals 16.018463374 base units, and 1 troy ounce per cup equals 131.466708828 base units, so dividing one by the other gives the direct pound per cubic foot-to-troy ounce per cup factor of 0.121844256366.
Simple example
1 lb/ft3 × 0.1218442564 = 0.1218442564 oz t/cup
1 pound per cubic foot = 0.1218442564 troy ounces per cup.
Real-world example
1,000 lb/ft3 × 0.1218442564 = 121.8442564 oz t/cup
1,000 pounds per cubic foot = 121.8442564 troy ounces per cup.
Conversion table
| Pound per Cubic foot (lb/ft3) | Troy ounce per Cup (oz t/cup) |
|---|---|
| 0.1 lb/ft3 | 0.0121844256 oz t/cup |
| 1 lb/ft3 | 0.1218442564 oz t/cup |
| 10 lb/ft3 | 1.218442564 oz t/cup |
| 100 lb/ft3 | 12.18442564 oz t/cup |
| 1,000 lb/ft3 | 121.8442564 oz t/cup |
| 10,000 lb/ft3 | 1,218.442564 oz t/cup |
Reverse conversion: Troy ounce per Cup to Pound per Cubic foot
0.1218442564 oz t/cup × 8.207198516 = 1 lb/ft3
0.1218442564 troy ounces per cup = 1 pounds per cubic foot.
pounds per cubic foot = troy ounces per cup × 8.20719851577
For a page dedicated to this direction, see Troy ounce per Cup to Pound per Cubic foot.
Understanding the Pound per Cubic foot
Pound per Cubic foot (lb/ft3) measures density. The US customary unit for expressing density, commonly used in construction and engineering material specifications. It is classified as a US customary density unit.
Where it's used: United States (construction, engineering, materials specifications)
Uses of the Pound per Cubic foot today
- US construction material density specs (concrete, soil, lumber, insulation)
- US engineering material property tables
- Bulk material handling and shipping weight estimates
Understanding the Troy ounce per Cup (oz t/cup)
Mass per volume density.
Pound per Cubic foot — sources
- NIST Handbook 44 — General tables of units including US customary density measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounces per cup are in 1 pound per cubic foot?
1 pound per cubic foot equals 0.1218442564 troy ounces per cup, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic foot to troy ounce per cup?
Multiply the pound per cubic foot value by 0.1218442564. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per cup back to pound per cubic foot?
Use the reverse factor: 1 troy ounce per cup equals 8.207198516 pounds per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic foot?
Pound per Cubic foot (lb/ft3) measures density. The US customary unit for expressing density, commonly used in construction and engineering material specifications. It is classified as a US customary density unit.
What is a troy ounce per cup?
Troy ounce per Cup (oz t/cup) is a unit of density.
Is the pound per cubic foot to troy ounce per cup conversion exact?
Yes. Both pound per cubic foot and troy ounce per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.1218442564 used above is exact to as many digits as you choose to display.
Where is the pound per cubic foot still used today?
United States (construction, engineering, materials specifications)
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.