Kilograms to US Cups for Water
Snapshot
For Water, 1 Kilogram equals about 4.239471 US Cups.
- Material basis: Water at 997 kg/m^3.
- Example: For 0.1 Kilograms of Water, the result is 0.423947 US Cups.
Interactive conversion
Converter Calculator
Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.
4.239471 US Cups (Water)
SwitchAt the recorded density, 1 kilogram of water converts to 4.239471 us cups.
API and AI agent access
Kilograms to US Cups for Water. Material: water.
Machine-readable identifiers
- Conversion family
material-density- Source unit
kilogram- Target unit
cup_us- 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": "kilogram",
"to": "cup_us",
"material": "water"
}Essential response
{
"ok": true,
"conversion": {
"family": "material-density",
"value": 1,
"from": "kilogram",
"to": "cup_us",
"result": {
"raw": 4.23947125148,
"display": "4.239471"
},
"canonicalPath": "/material-density/kilograms-to-us-cups/water/"
}
}Explanation
Kilograms of Water convert to us cups 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
| Kilograms (Water) | US Cups (Water) |
|---|---|
| 0.1 | 0.423947 |
| 1/4 | 1.059868 |
| 1/2 | 2.119736 |
| 1 | 4.239471 |
| 2 | 8.478943 |
| 5 | 21.197356 |
| 10 | 42.394713 |
| 25 | 105.986781 |
| 50 | 211.973563 |
| 100 | 423.947125 |
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, volume is calculated as mass divided by density after normalizing the units to kilograms and cubic meters. The resulting page multiplier is 4.239471 cup (US) per kg.
Use a measured density for a specific batch, grade or supplier; the table value is a reference, not a product specification.