g to ct Converter

Type a value in grams and read the equivalent in carats immediately, with the exact factor and common values.

How g to ct works

Convert grams to carats instantly. 1 g = 5 ct, with a live result and a quick reference table. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

What one g is in ct

The conversion is a single multiplication by 5, so the result is only as rounded as the display. Going the other way divides by the same figure: one ct is 0.2 g.

No intermediate rounding happens. A value entered with four decimals comes back with the same precision, which is what makes the factor trustworthy for anything that accumulates error.

Values people ask for

gct
1 g5 ct
2 g10 ct
5 g25 ct
10 g50 ct
25 g125 ct
50 g250 ct
100 g500 ct

Where this pair comes up

Jewellery listings switch between grams and carats depending on the market.

Five carats make one gram, so a 2 g stone is 10 ct.

Good to know

  • Works offline once loaded, including on flights and in locked-down networks.
  • No file size limit beyond your device's own memory.
  • Free to use, with no account and no usage counter.
  • Results are produced locally, so they are not logged or shared with anyone.

Questions

What is the conversion factor?

1 g = 5 ct, from the international definition.

Can I convert backwards?

Divide by 5 to go the other way.

Is the factor exact?

It is the standard definition for this pair, applied without intermediate rounding. Only the displayed result is rounded.

Can I convert ct back to g?

Yes — divide by 5 instead of multiplying, or use the reverse page if one exists.

Keep going

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