convertimate Gold purity

Karats to percent gold

Type a value in kt to get it in % instantly.

75%

That's about the same as 18 karat gold. A 10 g piece at that purity holds about 7.5 g of pure gold.

What it means

How pure is that?

Karat measures purity, not weight. Carat with a c is a gemstone weight of 200 mg, and a different thing entirely.

The math

How to convert kt to %

To convert karats to percent gold, multiply by 4.16667.

Example: 18 kt × 4.16667 = 75 %.

In the other direction, 1 % = 0.24 kt.

Every unit

Your purity in every unit

Tables

kt to % conversion table

kt to % conversion table
kt%
8 kt33.3333 %
9 kt37.5 %
10 kt41.6667 %
12 kt50 %
14 kt58.3333 %
15 kt62.5 %
18 kt75 %
20 kt83.3333 %
21 kt87.5 %
22 kt91.6667 %
23 kt95.8333 %
24 kt100 %
% to kt conversion table
% to kt conversion table
%kt
8 %1.92 kt
9 %2.16 kt
10 %2.4 kt
12 %2.88 kt
14 %3.36 kt
15 %3.6 kt
18 %4.32 kt
20 %4.8 kt
21 %5.04 kt
22 %5.28 kt
23 %5.52 kt
24 %5.76 kt

Quick answers

Quick answers

How many % is 1 kt?
1 kt is 4.16667 %.
How many % is 10 kt?
10 kt is 41.6667 %.
How many % is 18 kt?
18 kt is 75 %.

The units

About these units

Karats (kt)

Parts of gold out of 24. Pure gold is 24 kt.

Percent gold (%)

The share of gold by weight: 18 kt is 75%.

Learn more about purity units

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