/convert/carats-to-grams/ Convert carats to grams instantly. Includes a reference table and formula. article carats to grams Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
⚖️ Weight & Mass

carats to grams Converter

Convert carats to grams instantly. Includes a reference table and formula.

Quick answer: To convert carats to grams, multiply by 0.2. For example, 1 carats = 0.2 grams. Use the calculator below for any value.
carats to grams
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Common conversions
carats grams
Formula:

How to convert carats to grams

1

Enter your value

Type the number of carats you want to convert into the left box. The result in grams appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — grams to carats. Your current value carries across so you don't have to re-enter anything.

3

About carats and grams

carats and grams are both weight and mass. Use this converter to switch between them instantly.

💡 Did you know?

1 carat = 0.2 g exactly. The 'carat' as a weight unit (different from the gold purity 'karat') comes from carob seeds, historically used as counterweights because of their remarkably consistent mass (~0.2 g each). Diamonds over 1 carat jump sharply in price per carat because of rarity.

📊 Common conversions at a glance
carats grams
0.5 0.1
1 0.2
2 0.4
5 1
10 2
25 5
Reviewed for 2026. carats ↔ grams conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.