Material DensityPounds to US Cups

Pounds to US Cups for Cast Iron

Snapshot

For Cast Iron, 1 Pound equals about 0.266281 US Cups.

  • Material basis: Cast Iron at 7,200 kg/m^3.
  • Example: For 0.1 Pounds of Cast Iron, the result is 0.026628 US Cups.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

0.266281 US Cups (Cast Iron)

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API and AI agent access

Pounds to US Cups for Cast Iron. Material: cast-iron.

Machine-readable identifiers

Conversion family
material-density
Source unit
pound
Target unit
cup_us
Material
cast-iron

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "material-density",
  "value": 1,
  "from": "pound",
  "to": "cup_us",
  "material": "cast-iron"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "material-density",
    "value": 1,
    "from": "pound",
    "to": "cup_us",
    "result": {
      "raw": 0.266280949593,
      "display": "0.266281"
    },
    "canonicalPath": "/material-density/pounds-to-us-cups/cast-iron/"
  }
}
API, OpenAPI and WebMCP documentation

Explanation

Pounds of Cast Iron convert to us cups using one fixed density basis of 7200 kg/m^3. Match temperature, composition and material grade to the stated reference conditions.

Representative cast iron density.

Common Conversion Values

Pounds (Cast Iron)US Cups (Cast Iron)
0.1 0.026628
1/4 0.06657
1/2 0.13314
1 0.266281
2 0.532562
5 1.331405
10 2.662809
25 6.657024
50 13.314047
100 26.628095

Methodology

Cast Iron density and calculation basis

Evidence status: publishable.

Representative gray cast iron density; ductile iron and other grades differ.

grade: Dura-Bar gray cast iron

Source basis: Dura-Bar, Density technical brief, 02/2019. Technical brief: gray iron versus ductile iron density. https://www.dura-bar.com/getmedia/811341e6-6541-48f9-b719-1d1d666a2bc8/dura-bar-density-0219.pdf?ext=.pdf Applicability: adopted-context.

Ductile iron has a separate 0.255 lb/in³ value; temperature not stated.

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 0.266281 cup (US) per lb.

Use a measured density for a specific batch, grade or supplier; the table value is a reference, not a product specification.