Pound to Carat Converter
Weight · unit-converter
Convert Pound to Carat 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: Pound (lb)
To: Carat (ct)
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.
About Carat
The metric carat is exactly 0.2 grams (200 mg), commonly used for gemstones and jewelry.
How to convert pounds to carats
1 pound is equal to 2267.96185000000014 carat:
1 lb = (453.59237 g ÷ 0.2 g) ct = 2267.96185000000014 ct
Each pound is defined as 453.59237 g and each carat as 0.2 g, so one lb equals 453.59237 ÷ 0.2 ct = 2267.96185000000014 ct.
Let w(lb) be the numeric value of the same mass measured in Pound (lb), and w(ct) the value in Carat (ct). Then:
w(ct) = w(lb) × (453.59237 / 0.2)
Equivalently, divide by how many lb fit into one ct (grams per ct divided by grams per lb):
w(ct) = w(lb) ÷ 0.00044092452437
Or: carat = pound ÷ 0.00044092452437
Examples
Example #1: Convert 20 lb to carat
20 lb = 20 lb × (453.59237/0.2) ct = 45359.237 ct
20 lb = 20 lb ÷ 0.00044092452437 = 45359.237 ct
Example #2: Convert 50 lb to carat
50 lb = 50 lb × (453.59237/0.2) ct = 113398.0925 ct
50 lb = 50 lb ÷ 0.00044092452437 = 113398.0925 ct
Summary
To convert Pound to Carat, multiply the value in lb by the ratio of grams per lb divided by grams per ct. Equivalently: value_ct = value_lb × (453.59237 / 0.2). Numerically, 1 lb equals 2267.96185 ct.
Relationship context
You are converting between imperial / UK (stone, long ton, pound, ounce) (Pounds) and metric (SI) (Carats). 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 2.267962e+3.
Conversion tables
| Pound (lb) | Carat (ct) |
|---|---|
| 0.1 | 226.796185 |
| 1 | 2,267.96185 |
| 2 | 4,535.9237 |
| 3 | 6,803.88555 |
| 4 | 9,071.8474 |
| 5 | 11,339.80925 |
| 6 | 13,607.7711 |
| 7 | 15,875.73295 |
| 8 | 18,143.6948 |
| 9 | 20,411.65665 |
| Pound (lb) | Carat (ct) |
|---|---|
| 10 | 22,679.6185 |
| 20 | 45,359.237 |
| 30 | 68,038.8555 |
| 40 | 90,718.474 |
| 50 | 113,398.0925 |
| 60 | 136,077.711 |
| 70 | 158,757.3295 |
| 80 | 181,436.948 |
| 90 | 204,116.5665 |
| 100 | 226,796.185 |