⚖️ Carats to Rattis Converter

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1 carat =
1.64612 rattis
1 ratti =
0.60749 carats
Formula
ratti = ct × 1.64612
Handy values
5 ct = 8.23059 ratti · 10 ct = 16.4612 ratti · 100 ct = 164.612 ratti

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⚡ Carats to Rattis: the quick answer

1 ct = 1.64612 ratti 1 carat equals 1.64612 rattis

To convert carats to rattis, multiply the value by 1.64612. To go the other way, multiply rattis by 0.60749 to get carats.

↔ Convert rattis to carats instead

🧮 Formula

Carats to Rattis
ratti = ct × 1.64612
Rattis to Carats
ct = ratti × 0.60749

Where

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

📊 Carats to Rattis conversion table

Carats (ct)Rattis (ratti)
1 ct1.64612 ratti
2 ct3.29224 ratti
3 ct4.93835 ratti
4 ct6.58447 ratti
5 ct8.23059 ratti
6 ct9.87671 ratti
7 ct11.5228 ratti
8 ct13.1689 ratti
9 ct14.8151 ratti
10 ct16.4612 ratti
12 ct19.7534 ratti
14 ct23.0457 ratti
15 ct24.6918 ratti
20 ct32.9224 ratti
21 ct34.5685 ratti
24 ct39.5068 ratti
25 ct41.153 ratti
30 ct49.3835 ratti
40 ct65.8447 ratti
50 ct82.3059 ratti
60 ct98.7671 ratti
75 ct123.459 ratti
80 ct131.689 ratti
100 ct164.612 ratti
200 ct329.224 ratti
250 ct411.53 ratti
300 ct493.835 ratti
400 ct658.447 ratti
500 ct823.059 ratti
750 ct1,234.59 ratti
1,000 ct1,646.12 ratti

📘 About these units

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

Ratti (ratti). A ratti is 1/8 of a masha (about 0.1215 g), used for gemstones in India (a gemstone "ratti" is often taken as 0.18 g). Used in: Asia — India, Pakistan & Nepal.

❓ Frequently asked questions

How many rattis are in one carat?

There are 1.64612 rattis in one carat.

How do I convert carats to rattis?

Multiply the number of carats by 1.64612. For example, 10 carats equal 16.4612 rattis.

How many carats are in one ratti?

One ratti equals 0.60749 carats.

How many rattis is 12 carats?

19.7534 rattis. Other common values: 5 carats = 8.23059 rattis and 100 carats = 164.612 rattis.

What people are saying
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Anonymous · 22 Oct 2026