⚖️ Carats to Quarters (UK) Converter

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1 carat =
1.57473 × 10⁻⁵ quarters
1 quarter =
63,502.9 carats
Formula
qr = ct × 1.57473 × 10⁻⁵
Handy values
100 ct = 0.00157473 qr · 1,000 ct = 0.0157473 qr · 10,000 ct = 0.157473 qr

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⚡ Carats to Quarters (UK): the quick answer

1 ct = 1.57473 × 10⁻⁵ qr 1 carat equals 1.57473 × 10⁻⁵ quarters

To convert carats to quarters, multiply the value by 1.57473 × 10⁻⁵. To go the other way, multiply quarters by 63,502.9 to get carats.

↔ Convert quarters to carats instead

🧮 Formula

Carats to Quarters (UK)
qr = ct × 1.57473 × 10⁻⁵
Quarters (UK) to Carats
ct = qr × 63,502.9

Where

  • ct = the weight in carats
  • qr = the weight in quarters
Every unit here is defined by its weight in kilograms, so the conversion factor is (kilograms per carat) ÷ (kilograms per quarter).

📊 Carats to Quarters (UK) conversion table

Carats (ct)Quarters (UK) (qr)
1 ct1.57473 × 10⁻⁵ qr
5 ct7.87365 × 10⁻⁵ qr
10 ct0.000157473 qr
25 ct0.000393683 qr
50 ct0.000787365 qr
100 ct0.00157473 qr
250 ct0.00393683 qr
500 ct0.00787365 qr
1,000 ct0.0157473 qr
2,500 ct0.0393683 qr
5,000 ct0.0787365 qr
10,000 ct0.157473 qr
100,000 ct1.57473 qr
1,000,000 ct15.7473 qr

✏️ Worked examples

Convert 25 carats to quarters

25 ct × 1.57473 × 10⁻⁵ = 0.000393683 qr

Try this example →

Convert 250 carats to quarters

250 ct × 1.57473 × 10⁻⁵ = 0.00393683 qr

Try this example →

📘 About these units

Carat (ct). The metric carat is 200 milligrams, the unit for diamonds and gemstones.

Quarter (qr). An imperial quarter is 28 pounds (two stone).

❓ Frequently asked questions

How many quarters are in one carat?

There are 1.57473 × 10⁻⁵ quarters in one carat.

How do I convert carats to quarters?

Multiply the number of carats by 1.57473 × 10⁻⁵. For example, 10 carats equal 0.000157473 quarters.

How many carats are in one quarter?

One quarter equals 63,502.9 carats.

How many quarters is 1,000 carats?

0.0157473 quarters. Other common values: 100 carats = 0.00157473 quarters and 10,000 carats = 0.157473 quarters.

What people are saying
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Anonymous · 22 Oct 2026