US Cups to Pounds for Water
Snapshot
For Water, 1 US Cup equals about 0.520023 Pounds.
- Material basis: Water at 997 kg/m^3.
- Example: For 0.1 US Cups of Water, the result is 0.052002 Pounds.
Interactive conversion
Converter Calculator
Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.
0.520023 Pounds (Water)
SwitchAt the recorded density, 1 us cup of water converts to 0.520023 pounds.
API and AI agent access
US Cups to Pounds for Water. Material: water.
Machine-readable identifiers
- Conversion family
material-density- Source unit
cup_us- Target unit
pound- Material
water
Use these identifiers in the API request. Sources and model limits also apply to software clients.
Example API request and response
POST /api/v1/convertRequest
{
"family": "material-density",
"value": 1,
"from": "cup_us",
"to": "pound",
"material": "water"
}Essential response
{
"ok": true,
"conversion": {
"family": "material-density",
"value": 1,
"from": "cup_us",
"to": "pound",
"result": {
"raw": 0.520023014916,
"display": "0.520023"
},
"canonicalPath": "/material-density/us-cups-to-pounds/water/"
}
}Explanation
US Cups of Water convert to pounds using one fixed density basis of 997 kg/m^3. Match temperature, composition and material grade to the stated reference conditions.
Approximate liquid water density near room temperature.
Common Conversion Values
| US Cups (Water) | Pounds (Water) |
|---|---|
| 0.1 | 0.052002 |
| 1/4 | 0.130006 |
| 1/2 | 0.260012 |
| 1 | 0.520023 |
| 2 | 1.040046 |
| 5 | 2.600115 |
| 10 | 5.20023 |
| 25 | 13.000575 |
| 50 | 26.001151 |
| 100 | 52.002301 |
Methodology
Water density and calculation basis
Evidence status: publishable.
Approximate density of air-free water at 25 °C, rounded to the nearest kg/m³.
temperature: 25 °C
composition: Air-free water
Source basis: NIST, NISTIR 7383 (2019), Selected Procedures for Volumetric Calibrations. GLP 10, Table 2, printed p.6 / PDF p.15, 25 °C air-free row. https://nvlpubs.nist.gov/nistpubs/ir/2019/NIST.IR.7383-2019.pdf Applicability: adopted-context.
For this direction, mass is calculated as volume multiplied by density after normalizing the units to cubic meters and kilograms. The resulting page multiplier is 0.520023 lb per cup (US).
Use a measured density for a specific batch, grade or supplier; the table value is a reference, not a product specification.