Carat to Pound Converter
Weight · unit-converter
Convert Carat to Pound with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use gram-based factors (international avoirdupois pound and metric definitions). The full Weight Converter also includes carat, grain, and US/UK hundredweight.
Calculator
From: Carat (ct)
To: Pound (lb)
About Carat
The metric carat is exactly 0.2 grams (200 mg), commonly used for gemstones and jewelry.
About Pound
The international avoirdupois pound is exactly 0.45359237 kg. It is the standard pound for weight in the US and for many trade weights.
How to convert carats to pounds
1 carat is equal to 0.00044092452437 pound:
1 ct = (0.2 g ÷ 453.59237 g) lb = 0.00044092452437 lb
Each carat is defined as 0.2 g and each pound as 453.59237 g, so one ct equals 0.2 ÷ 453.59237 lb = 0.00044092452437 lb.
Let w(ct) be the numeric value of the same mass measured in Carat (ct), and w(lb) the value in Pound (lb). Then:
w(lb) = w(ct) × (0.2 / 453.59237)
Equivalently, divide by how many ct fit into one lb (grams per lb divided by grams per ct):
w(lb) = w(ct) ÷ 2267.96185000000014
Or: pound = carat ÷ 2267.96185000000014
Examples
Example #1: Convert 20 ct to pound
20 ct = 20 ct × (0.2/453.59237) lb = 0.0088184905 lb
20 ct = 20 ct ÷ 2267.96185000000014 = 0.0088184905 lb
Example #2: Convert 50 ct to pound
50 ct = 50 ct × (0.2/453.59237) lb = 0.0220462262 lb
50 ct = 50 ct ÷ 2267.96185000000014 = 0.0220462262 lb
Summary
To convert Carat to Pound, multiply the value in ct by the ratio of grams per ct divided by grams per lb. Equivalently: value_lb = value_ct × (0.2 / 453.59237). Numerically, 1 ct equals 0.00044092452436975517 lb.
Relationship context
You are converting between metric (SI) (Carats) and imperial / UK (stone, long ton, pound, ounce) (Pounds). Metric mass is decimal from the gram; US and imperial masses use pounds and ounces with fixed definitions relative to the kilogram. The numeric factor used here is 4.409245e-4.
Conversion tables
| Carat (ct) | Pound (lb) |
|---|---|
| 0.1 | 0.0000440925 |
| 1 | 0.0004409245 |
| 2 | 0.000881849 |
| 3 | 0.0013227736 |
| 4 | 0.0017636981 |
| 5 | 0.0022046226 |
| 6 | 0.0026455471 |
| 7 | 0.0030864717 |
| 8 | 0.0035273962 |
| 9 | 0.0039683207 |
| Carat (ct) | Pound (lb) |
|---|---|
| 10 | 0.0044092452 |
| 20 | 0.0088184905 |
| 30 | 0.0132277357 |
| 40 | 0.017636981 |
| 50 | 0.0220462262 |
| 60 | 0.0264554715 |
| 70 | 0.0308647167 |
| 80 | 0.0352739619 |
| 90 | 0.0396832072 |
| 100 | 0.0440924524 |