Skip to content
RK Calculator
Menu

US Cups to Pounds (Butter) Converter

Convert US cups (cup) to pounds (lb) for butter, with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount, choose its measure and the one you want, and pick the type. Spoons and cups convert to weight using the cited weight per cup.

The quantity to convert. Fractions such as 3/4 or 1 1/2 are accepted.
Unit you want. Swap exchanges the two units.
Weight per cup differs by ingredient and by how it is measured; each option names the assumption used.
Result
Converted amount
0.500449 lb
Density used
0.959473 g/mL (USDA FDC 173410, 1 cup = 227 g)

1 US cups of butter = 0.500449 pounds. Weights for cups and spoons vary with how the ingredient is measured, so treat this as a close estimate.

The same amount in other weight units
UnitAmount
milligrams227,000
grams227
kilograms0.227
ounces (avoirdupois)8.00719
Show the working
  1. 1 cup = 236.5882365 mL
  2. × 0.959473 g/mL (USDA FDC 173410, 1 cup = 227 g) = 227 g
  3. = 0.50044933516 lb

How to convert us cups to pounds

1 cup = 0.500449 lb, so multiply by 0.500449 to go from US cups to pounds of butter. Going the other way, 1 lb = 1.9982 cup.

lb = cup × 0.500449
cup = lb × 1.9982

Cups and spoons convert to weight using the weight per cup for butter shown in the result; how the ingredient is measured (spooned, packed, sifted) changes it.

Worked example:

5 cup = 1182.9411825 mL
× 0.959473 g/mL (USDA FDC 173410, 1 cup = 227 g) = 1135 g
= 2.5022466758 lb

US Cups to pounds table

US CupsPounds
1 cup0.500449 lb
2 cup1.0009 lb
3 cup1.50135 lb
4 cup2.0018 lb
5 cup2.50225 lb
6 cup3.0027 lb
7 cup3.50315 lb
8 cup4.00359 lb
9 cup4.50404 lb
10 cup5.00449 lb
15 cup7.50674 lb
20 cup10.009 lb
25 cup12.5112 lb
30 cup15.0135 lb
40 cup20.018 lb
50 cup25.0225 lb
75 cup37.5337 lb
100 cup50.0449 lb
250 cup125.112 lb
500 cup250.225 lb
1000 cup500.449 lb

About the units

US Cups (cup)
US cups, a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).
Pounds (lb)
Pounds, a US customary unit. Definition: NIST Handbook 44 Appendix C (international foot and avoirdupois pound).

Formula version 0.1.0Reviewed